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

 

Viktor Radcliff asked:


There are two types of allergic rhinitis: seasonal allergic rhinitis (hay fever)- when symptoms are experienced only during spring and/or summer, and perennial allergic rhinitis (PAR) – when symptoms are experienced all year round.

The allergens that most commonly cause perennial allergic rhinitis are house dust, dust mites, cockroaches, cat or dog dander, and fungi or molds.

Industrial dust,fumes and chemicals can cause an occupation-related allergic rhinitis.

There is often a family predisposition to developing perennial allergic rhinitis and other allergies.

The symptoms of perennial rhinitis are described as like those of a permanent cold: blocked stuffy nose,constant sore throats and postnasal drip,headaches,loss of taste and smell.People with allergic rhinitis, particularly those with perennial allergic rhinitis, may experience sleep disorders and daytime fatigue.Some people with perennial allergic rhinitis show poorer psychological functioning than non-allergic people.

Symptoms of perennial allergic rhinitis always flare up indoors.

The only way to prevent perennial allergic rhinitis is to avoid the allergen that causes it.For perennial allergic rhinitis caused by dust and dust mite, this means using dust mite covers for pillows and mattresses,cleaning floors and walls with a damp mop, and using an air purifier.For perennial allergic rhinitis caused by animal dander,keeping pets out of the bedroom, and off furniture, rugs and other dander-catching surfaces and having pets bathed and groomed frequently is the best solution.

Although perennial allergic rhinitis resembles the seasonal rhinitis in some ways, there are important differences in treatment options : perennial symptoms stem from allergens being inhaled deep into the lungs, so many medications that are effective in treating hay fever symptoms will be less effective.

Intranasal corticosteroid sprays have become the main recommended treatment in perennial allergic rhinitis,especially in patients with moderate or severe PAR.Decongestant sprays and tablets will help relieve a stuffy, blocked nose with catarrh.However,they should be used for short periods only.Anti-histamine medication may help, but it is far less effective than for hay fever.

Allergy testing is very important so you can identify the exact indoor allergen that causes the allergy.