Mark Bevan asked:

What is hay fever?

Hay fever is a common form of allergic reaction. It is also known as allergic rhinitis where rhinitis comes from ‘rhino’ meaning nose and ‘itis’ meaning inflammatory. Hay fever in layman’s terms can be described as inflammation of the nose caused by an allergic reaction. The other parts of the body affected by hay fever include eyes, sinuses, throat and ears. Many times hay fever is mistaken for common cold because it is marked by cold like symptoms such as runny nose, sneezing, congestion and sinus pressure. However, unlike cold which is caused by a virus, hay fever is caused by an allergic response to indoor or outdoor airborne allergens, such as pollen, dust mites or pet dander. In some people hay fever may also be triggered by pollution such as cigarette smoke and car exhaust fumes.

There are two categories of hay fever or allergic rhinitis -

Seasonal hay fever – A large number of people are affected by seasonal hay fever that occurs during spring, summer, and in early fall mainly because of the high levels of pollens present in the atmosphere during these seasons. Perennial hay fever – People who experience hay fever all year round are said to be suffering from perennial hay fever.

Hay fever symptoms

Hay fever symptoms vary from person to person. While some people are fortunate to have only mild symptoms that do not last long, some hay fever victims are severely affected and show symptoms every day during the pollen season. In such cases, people may have difficulty attending school or work.

Common hay fever symptoms include – stuffy or runny nose, itchy nose, throat, or ear canals, sneezing, watery red eyes and ear congestion. Less common hay fever symptoms include – inability to taste or smell food, ‘nasal’ voice, face pain, sweats, and headache. Asthma symptoms – some people may also experience shortness of breath, especially with exercise or exertion, coughing and wheezing. Symptoms can worsen in people who already have asthma.

Medicine used for the treatment of hay fever

Anti-histamine medicines are commonly used for the treatment of hay fever this is because symptoms are caused due the release of a chemical in the body called histamine in response to the allergen. Anti- inflammatory drugs and decongestants may also be given to relieve patients of the symptoms. A doctor may suggest stronger prescription drugs in severe cases of hay fever.

These days, many people who are constantly affected by hay fever are going in for drug-free alternate therapies such as Qu-Chi bands. Based on the Chinese knowledge of acupressure, the Qu-Chi band provides fast relief from hay fever as it works directly on the acupressure points that relieve hay fever symptoms. Since it is natural, Qu-Chi band does not cause any side effects. The band is easy to wear and can be worn when the symptoms start or as a preventive measure when the symptoms are about to start so that fast and effective hay fever treatment becomes possible. The Qu-Chi band can be used round the year; it can be safely used in conjunction with other medications also.

Abhishek Agarwal asked:


If you are prone to sneezing problems then blame it on your genetics and your body’s lack of immunity. Allergic rhinitis or nasal allergy is bound to occur in a person if they are exposed to allergens, pollution, and cigarette smoke or happen to have a low weight at birth.

Doctors are puzzled as to why some people are allergic to certain substances while others are not, but one thing they are sure is that your body responds to these allergens. Your body’s immune system has been programmed in such a way as to react whenever a foreign body gets into the nose and these triggers off a series of reactions in the body when the immune system begins its fight to repel the substance. During this process a chemical substance called histamine is released. This is why your eyes begin to water and your nose starts running. At times more severe problems like wheezing and breathing difficulties occur in some people.

Many a times it is allergens which are present in the atmosphere that are the main cause for nasal allergies though these allergens can come from different sources. One of the main causes of nasal allergies through out the country is due to pollens, and their concentration can vary according to the places. Some places may be concentrated with flowering varieties which can generate enough pollen in the air while it may not be so in other places. Some pollen like rag weed can travel far and wide, so even if you live in a city you may still be affected by it. Flowering trees, plants, grass and bushes can also release a number of pollen grains into the air causing nasal allergies.

Though dust can cause you to sneeze it may not cause nasal allergy. But dust mites which are tiny microscopic organisms which can be found in mattresses, carpets and furniture can cause nasal allergy. You will know for sure that it is the dust mites which are actually causing you to sneeze when in the winter months the pollens in the air are at a minimal and you still find yourself sneezing endlessly.

Another serious allergic problem is caused by animal dander. Dander which comes from pets like dogs and cats easily settle down in carpets and furniture and cause you to experience sneezing problems even after you have got rid of your pets. The only way that you can get rid of dander once and for all is getting the carpet and upholstery in the sofas in your home vacuumed thoroughly and having them shampooed.

You will know that you are having a nasal allergy the moment your nose starts to twitch and you begin sneezing for no reason. It is the body’s way of trying to get rid of the allergen. The nose then starts to run and this is how the body’s mechanism tries to wash out the allergen. A little later say after a few hours you will find that you are now having a stuffy nose and you become extremely sensitive to other irritants. You will have to endure this for the duration it takes for the body to have the allergen to be cleared from your body. For some people they can develop more serious problems like asthma or sinus infections.

Adithya Adi asked:


Asthma

Bronchial asthma (from Greek, “breath” and often simplistic just asthma), and is a chronic, inflammatory disease of the airways with lasting history of hypersensitivity. In vulnerable individuals, the inflammation leads to paroxysmal dyspnea caused by a narrowing of the airways – a so-called bronchial obstruction (definition of the international consensus report). This airway narrowing is caused by increased secretion of mucus, spasm of the bronchial and formation of edema of the bronchial mucosa, it is reversible by treatment regress) (. A variety of stimuli cause the increase of the sensitivity of the airways (bronchial hyperreactivity or hyperresponsiveness) and the associated inflammation. Five percent of adults and seven to ten percent of children suffering from bronchial asthma.

Word origin

Asthma is a 16th-century since the German detectable borrowing from Greek, asthma, which in turn, even morphologically obscure Indo-European from a root word hma with the meaning “breathe” seems to be derived.

Causes

causes (etiology) of various shapes

They do not distinguish the allergic (extrinsic) asthma from allergic (intrinsic) asthma. In its pure form, but these occur only in about ten percent of the patients in the majority of hybrids are observed. While more common in children allergic asthma occurs between the ages piled on non-allergic form. Cigarette smoke in the parental home favors asthma. There is also evidence that cultural and civilizational factors, such as certain drugs also promote applications in early childhood asthma.

Allergic asthma

Exogenous allergic asthma is triggered when the appropriate genetic predisposition to atopy by external stimuli (allergenic substances in the environment, called allergens). These immunoglobulins are formed of type E (IgE), the effect will interact with specific allergens, the allergy-causing secretion of neurotransmitters such as histamine, leukotrienes and bradykinin from mast cells. These substances will then trigger the airway constriction. In addition to this immediate response of type I after inhalation of the allergen can occur after 6 to 12 hours for a delayed reaction, which is triggered by the type of immunoglobulin G (IgG). Often, both reactions occur.

For a polygenic inheritance system speaks the observation that children of parents who both suffer from allergic asthma, a disease risk of 60-80%. On the island of Tristan da Cunha half the population suffers from asthma due to family inheritance. Hay fever (), seasonal allergic rhinitis, which like asthma is an inflammatory condition due to allergy to the mucosa of the nasopharyngeal area is, can the lower respiratory tract and then spread to asthma (run “Exchange Floor”). Almost one quarter of these patients  developed this after more than 10 years, a pollen asthma. In addition, at the beginning usually a specific allergen at the center, over the years, however, it is often used to extend the range trigger so that the allergen avoidance for patients and more difficult or even impossible.

There are indications that rural life to protect unborn children against asthma: children of women who had contact with animals during pregnancy, grain and hay to get in later life, rare allergic respiratory and skin diseases. For some protection against these complaints is an ongoing contact with livestock or grain needed.

Non-allergic asthma

The endogenous non-allergic asthma, however, can be caused by other stimuli, infections, mostly respiratory intolerances, medications – so-called analgesics-asthma (a pseudo-reaction to pain medication, mostly nonsteroidal anti-inflammatory drugs such as aspirin), exposure to poisonous (toxic) or irritating substances (solvents, plasticizers, cold air, food additives, and others), special physical effort and the reflux disease (reflux) are possible causes of stomach acid that form. Some links and other causes have not yet been clarified.

According to a study room sprays and cleaning products for spraying the risk of respiratory symptoms and asthma can increase significantly.

Pathogenesis

For disease development (pathogenesis) three pathophysiologic processes are characteristic:

inflammation of the bronchi

Allergens or other stimuli trigger an inflammatory response of the bronchial mucosa. This has a central role in asthma. In addition to mast cells and their distributed messenger substances (inflammatory mediators, see above) play eosinophils and T lymphocytes have an important role.

Bronchial hyperreactivity

For most asthmatics can demonstrate nonspecific bronchial hyperreactivity (general respiratory hypersensitivity to stimuli). The hyper-reactivity can often be objectified by the inhalation of irritating substances, such as ) when Methacholintest, histamine test or stress, such as Rennie (through the effort and the cooling of the bronchial tubes in the race, especially in children, or by cold provocation.

Lack of bronchial Cleaning (clearance)

The obstruction is the relocation of the lumen of the airways (reducing the available cross-section) as a result (of mucosal edema fluid in the mucous membrane), or impaired by increased mucus secretion (Hyperkrinie or Dyskrinie) and bronchospasm (constriction of the smooth muscle of the bronchi) . This is the self of the lung to a halt: The secretions can not drain and strengthens his injury to full relocation.