Allergy

Allergy is an erroneous effect by our immune system, when our body contacts with certain strange substances. It is unwise because these substances are normally harmless and remain so to non-allergic people. A variety of substances cause these allergies, including pollens, foods, molds, animal proteins, foreign serum proteins, insect venoms, dirty air, industrial chemicals and drugs. All the allergy producing substances are called allergens. The term “Allergy” was coined by the Viennese pediatrician Clemens von Priquet in 1906 after realizing that some of his patients were hypersensitive to usually inoffensive entities like dust, pollen and foods. Allergy is a local or universal inflammatory reaction to allergens. It has been estimated that almost fifty million North Americans are affected by allergic situation. The parts of the human body that are normally affected by allergy include the skin, eyes, ears, nose, lungs and stomach. The most common allergic disorders are allergic eye, asthma, allergic eczema, hay fever, hives and allergic shock. Following are the local symptoms of allergy that occur on different parts of body.

Symptoms Of Allergy

Inflammation of the nasal mucosa (allergic rhinitis).
Redness and longing of the eyes. It is called allergic conjunctivitis.
Sneezing, wheezing and dyspnoea, occasionally outright attacks of asthma, in many cases the airway tightens due to swelling.
Feeling of extensiveness, some pain and damaged hearing because of the lack of Eustachian tube drainage.
Different reactions on the skin like eczema, hives and contact dermatitis.
Head allergy symptoms are not common as the headaches are found in some people with environmental and chemical allergies.

People with allergies are not similarly responsive to allergens. Some people have harsh allergic rhinitis, but no food allergy. For instance, some people are very sensitive to nuts but not to any other food item. Allergies may get worse over the time, like childhood ragweed allergy may progress to dust and pollen allergy, for all the year. A person may lose allergic sensitivity. Loss of allergic sensitivity means less exposure to allergens or more patience for the same level of signs and symptoms.

Systemic allergy reaction is also called anaphylaxis. Several systems of body can be affected systemic allergy, such as digestive system, respiratory system and the circulatory system. The strictness of such kind of allergic reaction often needs injections of epinephrine. The most proficient handling for the allergy is, following identification of the offending allergen, leftovers elimination of the allergen from the affected person and avoidance of further experience. This type of treatment is very beneficial and necessary for allergies caused by most household and workplace allergens.