Andrew Moore asked:


Allergies are quite common today with practically everyone suffering from some form of allergy or the other. It is the overreaction of the immune system to antigens like bee stings, some food, insect stings or pollen that triggers an allergy. There are different types of allergic reactions that manifest itself in different ways in the body.

Allergies are generally mild with mild symptoms that go within a few days of getting rid of the trigger of the allergen. Occasionally, there are cases of people suffering from anaphylaxis which is a life threatening condition where there is difficulty in breathing and loss in consciousness.

One type of allergic reaction is seasonal allergic rhinitis, or hay fever. This is an allergic response to pollen and other microscopic substances that exist at certain times of the year. There are also conditions where allergic rhinitis works out to be perennial, or year round.

One of the types of allergic reactions is allergy to insect stings, which is very common. Some people however will not be aware of their allergy to insect stings until they are stung by an insect. More often than not, it is the second sting that triggers an allergy reaction while the first sting produces only a normal sting reaction. However if you have an allergy to insect stings, the severity of the reaction varies from person to person.

Allergy to latex is another of the types of allergic reactions where the person is allergic to substances made of natural latex. One of the main sources of this allergic reaction is rubber gloves while sometimes, latex that is used in other products like condoms and medical devices can trigger a reaction.

Mold allergy is an allergy that does not have a defined season as mold and fungi grow in all weather and thrive both indoors and outdoors. However some forms of outdoor mold tend to thrive in higher concentrations from spring to late fall. There are some people who suffer from allergy to cosmetics. With cosmetic allergy, you experience skin irritation because of some ingredients in the cosmetics like fragrances and preservatives. The two types of allergic reactions here are irritant contact dermatitis and allergic contact dermatitis.

Some people are allergic to pets; where it is not the pet’s feathers or fur that triggers a reaction. It is the invisible flakes of animal skin called dander that triggers sneezing, watery eyes and stuffy noses in some people. When you suffer from food allergies, it means that some food likes peanuts and jalapeños trigger an allergic reaction.

Symptoms here are like symptoms for different types of allergic reactions like hives, swelling of the throat and tongue, vomiting, abdominal cramps, diarrhea and a drop in blood pressure.

People suffering from allergic must know how to get first aid if it happens to them. Friend and family will be helpful if they know what it is. You will not know when it will be helpful.

Alexander Chong asked:


What is actually allergy rhinitis? Allergy rhinitis is an allergic disease, which is caused by the sensitinogen that reacting on the mucous membranes in the nasal cavity. It has two types; those are perennial and seasonal allergic rhinitis. Perennial allergic rhinitis occurs throughout the year; whereas, seasonal allergic rhinitis usually occurs during the blossoming or flowering season. In this season, plants start to release their pollen for breeding purpose. Pollen is one of the sensitinogens to the allergic rhinitis. Clinical features of allergic rhinitis are; itching in the nose, sneezing, watery nasal discharge and nasal obstruction. There are about 20 % of adults and children have seasonal or perennial allergic rhinitis.

Although it is prevalence in most of the countries regardless tropical or seasonal, most of the conditions are not treated adequately and the consequence is that allergic rhinitis becomes chronic. The chronic state of allergic rhinitis usually will lead to more serious complications of the upper and lower airways such as asthma, sinusitis and otitis media with effusion. Otitis media is an inflammation of the middle ear. Fluid is built up in the middle ear and causes temporary lose of hearing. However, if this chronic disease is not treated properly, it may lead to permanent hearing impairment.

 A few medical scientists had carried out surveys to study the epidemiologic links between allergic rhinitis and other airway diseases. What they had found out were, 78% of patients who had asthma were also had allergic rhinitis. They also found out that 99% of adults and 93% of adolescents, who had allergic asthma, also had allergic rhinitis. Besides, the other study that had been carried out for 23 years was found out that college students who previously had allergic rhinitis had three times higher the possibility to have asthma compared to those students who had not had allergic rhinitis What is actually allergy rhinitis? Allergy rhinitis is an allergic disease, which is caused by the sensitinogen that reacting on the mucous membranes in the nasal cavity. It has two types; those are perennial and seasonal allergic rhinitis. Perennial allergic rhinitis occurs throughout the year; whereas, seasonal allergic rhinitis usually occurs during the blossoming or flowering season. In this season, plants start to release their pollen for breeding purpose. Pollen is one of the sensitinogens to the allergic rhinitis. Clinical features of allergic rhinitis are; itching in the nose, sneezing, watery nasal discharge and nasal obstruction. There are about 20 % of adults and children have seasonal or perennial allergic rhinitis.

Although it is prevalence in most of the countries regardless tropical or seasonal, most of the conditions are not treated adequately and the consequence is that allergic rhinitis becomes chronic. The chronic state of allergic rhinitis usually will lead to more serious complications of the upper and lower airways such as asthma, sinusitis and otitis media with effusion. Otitis media is an inflammation of the middle ear. Fluid is built up in the middle ear and causes temporary lose of hearing. However, if this chronic disease is not treated properly, it may lead to permanent hearing impairment.

A few medical scientists had carried out surveys to study the epidemiologic links between allergic rhinitis and other airway diseases. What they had found out were, 78% of patients who had asthma were also had allergic rhinitis. They also found out that 99% of adults and 93% of adolescents, who had allergic asthma, also had allergic rhinitis. Besides, the other study that had been carried out for 23 years was found out that college students who previously had allergic rhinitis had three times higher the possibility to have asthma compared to those students who had not had allergic rhinitis before.

Many researches and works had been carried out to study the epidemiologic link between allergic rhinitis and sinusitis. The results had been well documented. The earlier study showed that 53% of children, who had allergic rhinitis, also had sinusitis. They proved this from the children abnormal sinus radiographs. Whereas, recent study showed that up to 70% of children, who had allergy and chronic rhinitis, had abnormal sinus radiographs. 78% of the patients who had recurrent sinus infection, rhinitis allergy was coming together with their extensive sinus disease. For the children who had otitis media with effusion, 40 to 50% of them had allergic rhinitis. This was confirmed by positive allergy skin tests or increased serum IgE antibodies to specific allergens test.

Scientist had proposed a model for the development of sinusitis and otitis media. Their proposed model assumes that the earliest cause for sinusitis is not bacterial infection but it is due to the obstruction in the nasal cavity, which hinders the normal movement of air and secretions in and out of sinuses. Virus that causes nasal inflammation is upper respiratory tract infection (URTI) type, which is called rhinovirus. Research had been carried out to study the effect of this virus to the nasal diseases. The result showed that when rhinovirus is inoculated into the nasal passage of a group people, one third of these people would develop sinus abnormities and typical sinus disease symptoms. Another study also showed that 87% of healthy adult, who voluntarily went through self-diagnosed colds, had maxillary sinuses illness.

Fluid inside the sinus cavity must be drained normally to keep the nasal healthy. When nasal being infected by bacteria or virus, or exposure to allergen, dust or chemicals, thicken secretion will be developed and it has higher possibility blocks the narrowed sinus ostia (opening that connect to the sinus cavity). Accumulation of these secretions in the sinus cavity will lead to further obstruction, mucosal swelling and also thicken the sinus mucosa. This will create an anaerobic environment that further favorite the bacterial growth and lead to infection. Congested sinus ostia must be resolved if not, it will lead to recurrent acute and eventually chronic nasal disease. This model also explained why chronic sinusitis is resistant to the antimicrobials treatment alone. To treat the sinusitis properly, antihistamines and corticosteroids have to be used as a combination with the antimicrobials treatment.

A similar model had been developed by scientist to explain the occurrence of otitis media with effusion. 83% of the children had at least once occurrence of acute otits media by the time they reach 3 years old. This model hypothesizes that nasal inflammation that is caused by allergens or URTIs virus will further cause inflammatory swelling and obstruction of the Eustachian tube. Obstruction of the Eustachian tube will increase negative pressure in the middle area and without improper ventilation; fluids will accumulate in the middle ear. Obstructed Eustachian tube will open occasionally with an effusion and this will **** the inner nasal secretion, which contain bacteria, virus and allergens into the middle ear cavity. Consequently, this will cause acute bacterial otitis media.

From the information above that have been gathered from various scientific publications, we know that common nasal allergy should not be left untreated. This is because it will lead to obstruction, fluid accumulation, bacterial infection and acute disease. If these diseases are not treated properly or successfully, a chronic state of inflammation, nasal congestion, and sinus infection will be developed. And it can further cause mucosal damage and ultimately, chronic disease. If the disease spreads to the middle ear, it will cause permanent hearing impairment

 

Neelima Reddy asked:


Itchiness, watery eyes, runny nose, sneezing, and redness are some of the common symptoms that majority of the people experiences as allergy symptoms.

The most effective way to fight against particular allergen is immunotherapy or allergy shot, but some people will get frightened to get allergy shot.

Allergy shots hold a little amount of substance that fights against the particular allergen. For example, if the person is allergic to pollen, a small amount of substance called pollen will be added to the shot.

A small amount will be given so that the body will get used to fight against the allergen and if the body comes in contact with that substance next time, body will be familiar with that.

Who are not eligible to take allergy shot?

Allergy shots are not safe for everyone. Although most of the people experienced positive results from these shots, they are not suitable for all. People who are suffering from asthma, heart attack, and respiratory problems, pregnant women, and children under age of five are not recommended to receive allergy shot.

Alternatively, certain individuals are experiencing some side effects such as:

• Feelings of shock when the shot is initially injected

• Lightheadedness

• Nausea

So, for these reasons, the patient should stay in the doctor’s office for at least fifteen to twenty minutes after receiving the shot.

Benefits of allergy shots:

• Allergy shots improve allergic rhinitis, hay fever, bee sting allergies, drug allergies, and eye allergies.

• In some cases, allergy shots improve asthma symptoms also. The most common reaction to allergy shot is swelling at the place where the shot is given.

The success of this immunotherapy varies from person to person depending on the severity of the person’s allergy and the number of substances the person is allergic to.

In addition to the traditional allergy shots, there are new approaches to immunotherapy procedures to treat allergies.

Oral immunotherapy works similar to the allergy shot. In this method, increasing doses of allergen will be given to slowly build up the patient’s tolerance. The only difference with oral immunotherapy from allergy shot is with oral immunotherapy extract of allergen is used as drops. In this method, generally the drops are placed under the tongue and then swallowed.

Intranasal immunotherapy method involves intranasal administration of grass and house dust mite allergen extracts, which reduces the nasal symptoms such as “nasal allergy”.

The side effect with intranasal immunotherapy is nasal irritation. When compared to the traditional allergy shots, intranasal immunotherapy has no long lasting benefits.

Rush immunotherapy involves quick build up to the maintenance dose of extract. In this method of treatment, during early phase increasing doses of allergen will be given every few hours rather than a few days. Since there is a great risk involved with this rush immunotherapy, this should be done in hospital under close supervision.

Some people will experience severe reaction to the allergy shot, which is called “anaphylaxis”. In case of bad reaction with this shot, physicians will do appropriate treatment to stop this reaction.

Since allergy shots are not good for everyone, talking to the physician before taking this shot is more advisable. Visit Allergy Symptoms

Sajid Latif asked:


What is allergic rhinitis?

Allergic rhinitis is inflammation of the nose resulting from an allergy. It affects five to 10 per cent of the population. A very common form is hay fever.

What causes allergic rhinitis and what are the risk factors?

An allergy is a response by the body’s defence system (the immune system) to something that is not a harmful infection. Such ‘harmless’ substances (allergens) include pollen, cat hair, animal dander, the house dust mite and mould spores.

It is not known why people develop allergic rhinitis. It is more common in people from families with eczema and asthma and there is probably an inherited factor that affects the way the immune system reacts to allergens.

What are the symptoms and complications of allergic rhinitis?

Allergic rhinitis results in a runny, itchy and blocked nose. On lying down at night the fluid in the nose drips down on to the back of the throat and causes bouts of coughing, which can be uncomfortable and disturb sleep.

How do doctors recognise allergic rhinitis?

Allergic rhinitis is usually diagnosed on the basis of the symptoms and their seasonal nature if it is hay fever or their association with a particular allergen such as cat hair.

Year-round allergic rhinitis due to mould spores or house dust mite is more difficult to diagnose as there are other similar forms of rhinitis that do not result from allergy. More than one allergen may be involved

What is the treatment for allergic rhinitis?

Self-care action plan

A self-care action plans to avoid the allergen and so minimise the symptoms of allergic rhinitis includes:

Keeping windows closed and using an air ioniser (for pollen)

Regular vacuuming using a vacuum cleaner with a pollen filter (all allergens)

Damp dusting, so preventing dust from being dispersed into the air (for house dust mite)

Use of special bed and pillow coverings and regular laundering of bedclothes

Medicines

A variety of medicines can be bought at the chemist to treat allergic rhinitis. Probably the most effective is a beclomethasone nasal spray. This acts to stop the inflammation in the nose, but takes a few days to produce this effect and so needs to be started before the symptoms become too severe. Once the symptoms are severe it may be sneezed straight out again.

Although allergic rhinitis is common in young women, none of these medications is recommended for use during pregnancy. All should be avoided if possible during pregnancy and increased efforts should be made to minimise exposure to the allergen as outlined in the self-care section of this factsheet. If the symptoms remain a problem, a doctor should be consulted.

Hyposensitisation

This involves giving gradually increasing doses of the substance that causes the allergy and in the process making the immune system less responsive to it. This should only be carried out under close medical supervision as occasionally this treatment causes a life-threatening allergic response that must be treated immediately with an injection of adrenaline.

Complementary therapy

Some complementary therapies (homoeopathy, osteopathy and acupuncture) claim to have beneficial effects on hay fever, but the explanations for their effect are not consistent with the traditional medical understanding of hay fever. Shiatsu, the Alexander technique and aromatherapy may help to improve general well-being and symptoms.

Chris Marshall asked:


Seasonal Allergies usually occur during spring, fall and summer. Winter is not a common time for Allergies because there are not as many plants in bloom during this time due to the cold weather. When plants bloom and flourish, so do seasonal Allergies but this does not mean that this allergy is caused mainly by plants. The weather can also play a big role in triggering seasonal allergies.

Seasonal Allergies Due To Pollen And Dust

Pollen is one of the main causes of seasonal Allergies as well as dust and mold spores. These are common occurrences during spring and summer as well as during fall. The pollen from plants can cause serious hay fever in some individuals who are highly sensitive to the allergens they contain. Pollen tends to become airborne when the right season comes and these cause allergic reactions in individuals.

There is actually little that you can do about being allergic to pollen, dust and mold spores. Seasonal Allergies are usually controlled and not eliminated with the use of antihistamines. Although, not all areas of the city may have pollen, mold spores or dust, chances are, whenever you go around the city, you will encounter airborne mold spores, pollen and dust separately. If you are sensitive to any of these allergens, then you are highly likely to have an allergic reaction.

What To Expect From Seasonal Allergies

Seasonal Allergies usually manifest themselves as sneezing, runny noses, itchy eyes and other allergic rhinitis symptoms. You might initially think that you have a cold but actually there is a great deal of difference between the two. Seasonal Allergies are usually not accompanied by fever whereas a cold is and a cold usually lasts for around 10 days compared to seasonal Allergies that last for as long as you are exposed to the allergens.

Seasonal Allergies also react well to antihistamines whereas colds to decongestants. Allergies that rely on seasons also occur during summer, spring and fall compared to a cold that usually occur during winter. Allergies are also dependent on the individual’s reaction to allergens while colds can be transmitted from one person to another.

As stated earlier, these kinds of Allergies react well to antihistamines. Some may need stronger medication to control but the key is to lessen your exposure to the allergens. Allergens updates are also posted by the government to help out those who are sensitive to hay fever and other allergens.

Nikhil Abraham asked:

Allergic rhinitis

Also known as hay fever , this condition refers to an allergy to pollen , dust , pets etc. which results in sneezing / running nose , nasal stuffiness , watery and itchy eyes.

In most cases, symptoms are mild and at the most are inconvenient . But if its severe and persists for extended periods of time , it is a cause of concern and needs to be treated.

If the allergy is due to pollen , symptoms are seen in particular seasons depending on when the plant in question flowers. Allergies to other things could be throughout the year.

Diagnosis is by clinical symptoms. Skin/ blood allergen testing can also be done to pinpoint the cause for the allergy.

Though the obvious preventive step is to avoid exposure to the offending agent , in most cases since its environmental, it just cannot be avoided. Regular cleaning of living spaces and personal effects minimizes exposure to allergens.

Medicines for treatment fall into the following categories :

Antihistamines – these control symptoms such as sneezing , watering and itchiness of eyes etc. Though the older ones are cause drowsiness , the newer generation antihistamines have minimal sedative effects and are safe. There are even antihistamine nasal sprays which take effect fairly quickly.

Decongestants – are often combined with antihistamines in tablet form or are available as nasal sprays. Though these provide instant relief from nasal stuffiness, it is wise not to use them for more than a couple of days since long term administration is known to cause adverse changes in the nasal skin lining. This is also due to preservatives added to the solution. Also, with repeated use , the response decreases till there is no effect ultimately.

Intra nasal steroids are very effective in the treatment of symptoms that are present for long periods.. It is administered locally and hence is safe for long term use.

Other drugs that influence the allergic reaction cascade such as cromolyn and leukotriene receptor antagonists are also useful but need to be taken on a regular basis.

Oral/ injectable steroids are rarely given keeping in mind their long term effects and are only prescribed for short periods when symptoms are very severe.

Immunotherapy is also an option for those whose symptoms are severe, uncontrolled by medication , or if other allergic conditions (eg. asthma, eczema ) begin to develop.