What are Allergies? Types, Symptoms and Causes of Allergies

What are Allergies?

Allergies are abnormal immune system reactions to things that are typically harmless to most people. When you're allergic to something, your immune system mistakenly believes that this substance is harmful to your body. (Substances that cause allergic reactions, such as certain foods, dust, plant pollen, or medicines, are known as allergens.)

Types of Allergies

1) Dust Mite Allergy-A dust mite allergy is an allergic reaction to a microscopic organism that lives in the dust that is found in most buildings and houses. Dust mites are a common cause of perennial allergic rhinitis. Dust mite allergy usually produces symptoms similar to pollen allergy and also can produce symptoms of asthma.

2) Corticosteroids -- These anti-inflammatory agents are used to treat the itching and swelling associated with a variety of allergic disorders. The most commonly used forms are corticosteroid nasal sprays for allergic rhinitis and sinusitis (such as Flonase, Nasalide, Nasocort, Nasonex, Rhinocort), over-the-counter topical corticosteroid creams for hives, dermatitis, and insect sting reactions, and inhaled corticosteroids for asthma. Oral or injected corticosteroids are used less frequently for more severe cases of asthma, dermatitis, or other allergic reactions.

3) Epinephrine -- Epinephrine (adrenalin) is used for emergency treatment in cases of anaphylaxis due to insect sting, food, or drug allergies. It is most commonly administered with a device called an EpiPen, which is a self-injectable shot of epinephrine. Epinephrine constricts the small blood vessels in the skin and mucous membranes, which increases blood pressure and heart rate back to normal levels. Epinephrine also is an antihistamine.

4) Immune complex allergies-Medication allergies are often type-III reactions. Foreign substances in the blood – such as medication – bond with antibodies, and then with the blood vessel walls in the smaller blood vessels, for instance, in the skin or kidneys. This leads to local inflammation, for instance, a skin rash, often in conjunction with haemorrhaging, skin damage, and itching.

5) Mold Allergy-A person can develop an allergy to the molds and yeasts that are commonly found indoors and outdoors. This eMedTV segment offers an in-depth look at the specific types of molds that cause allergies, as well as several ways to prevent mold allergy.

Symptoms Of Allergy
1) Tingling in the mouth
2) Hives, itching or eczema
3) Swelling of the lips, face, tongue and throat, or other parts of the body.
4) Watering eyes.
5) Cramps
6) Vomiting
7) Diarrhea

Cure for Allergies
1) Vacuuming the Right Way-If the carpet can't be replaced by a solid surface such as linoleum or hardwood, then it must be cleaned thoroughly and frequently. Also remember to vacuum upholstered furniture, draperies, and other fabric items that cannot be washed, removed, or replaced. The trouble with vacuuming is that the allergenic dust mite and mold particles become airborne during the process. Dust mite particles can remain airborne for about 15 minutes and be redistributed throughout the home environment. Allergic persons clearly should not be doing The vacuuming and should also stay out of the area until the dust particles resettle
2) . Antihistamines- are used to relieve or prevent the symptoms of allergic rhinitis (hay fever) and other allergies. Antihistamines prevent the effects of histamine, a substance produced by the body during an allergic reaction. Antihistamines come in tablet, capsule, liquid, or injection form and are available both over-the-counter and by prescription.