Allergies
An allergy is an abnormal reaction to ordinarily harmless substance or substances. These sensitizing substances, called allergens, may be inhaled, swallowed or come into contact with the skin. When an allergen is absorbed into the body it triggers white blood cells to produce IgE antibodies. These antibodies attach themselves to mast cells causing release of potent chemical mediators such as histamine, causing typical allergic symptoms. A person who has allergies doesn't have a poor immune system, rather an over protective one. Their immune system fights the allergen when it comes in contact with it even though the allergen isn't harmful. To diagnose allergies a physician will clean the person's back with alcohol, then mark it with an ink pen according to each substance going to tested. They are extracts of potential allergens in small vials. A drop of these is put on the corresponding mark on your skin, and then a needle is used to prick the skin. It breaks the surface of the skin so that the extract can enter. If an extract provokes an allergic reaction, the patient will develop an irritation that may look like a mosquito bite. The ones which promote reactions are the ones in which the person is allergic to and needs to ge
There are 3 main steps in the treatment of allergies: avoid the specific allergen, medication (drugs can be taken for the target organ affected), and Immunotherapy is appropriate in some, but not all, allergy conditions. Research in Arizona found that many people who believe they have allergies actually do not have the antibodies in their blood necessary to provoke an allergic reaction. Self-diagnosis isn't easy like most humans believe. Some other people believe that Allergies and asthma are different parts of the same health problem. While they are related, there are differences: Asthma can kill you, while allergies (except for reactions to insect stings, certain foods and drugs) are more of a nuisance than a threat. Just because you don't have allergies when you are a child, doesn't mean you can't ever get them. Allergies can start at any age. However, allergies do tend to change over time. Children are more allergic to foods. Young adults can become allergic to pharmaceutical drugs, pollen and insect stings. "Allergy, Asthma and Immunology Online" Cromolyn, nedocromil, and corticosteroids reduce the inflammation in the airways. Inflammation causes the bronchi to become "twitchy." A "twitchy" airway is more sensitive to various asthma triggers such as exercise, cold air, smoke, cold viruses and allergens. Anti-Inflammatory medications usually are prescribed in the inhaled form. Corticosteroids, in some cases, are prescribed in oral form. Long-term use of corticosteroids, particularly oral steroids, is not recommended, except in cases of uncontrolled asthma. Long-term oral corticosteroid use may cause side effects such as ulcers, weight gain, cataracts, weakening bones, high blood pressure, elevated blood sugar, and easy bruising. Possible side effects from inhaled anti-inflammatory medications include coughing and hoarseness. Although any environmental material can cause allergies, certain ones are encountered more frequently than are others. Inhalants such as pollens, mold spores, animal products (dander, saliva, urine), house dust, and house dust mites are very common allergies. There are Foods such as cow's milk, eggs, chicken, shellfish, whitefish, peanuts, soybeans, wheat products, chocolate, celery, and all products containing one or more of these ingredients. Some individuals are allergic to food additives, such as sulfites (used as a preservative), nitrates, and others. There are people who are allergic to drugs such as penicillin. Substances which touch the skin can also cause allergic reactions, which includ
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