Allergy shots are the most commonly used and most effective form of allergy immunotherapy. They are indicated for the treatment of allergic conditions affecting the nose and eyes (allergic rhino-conjunctivitis), ears (allergic otitis media), lungs (bronchial asthma) as well as for severe insect sting allergy. Shots are effective in treating reactions to many allergens, including , mold, house dust, animal dander, and insect stings.
An extract of a small amount of the allergen is injected into the skin of the arm. An injection may be given once a week (sometimes more often) for about seven months, after which injections can be administered every two weeks. Eventually, injections can be given every four weeks. The duration of therapy may be three to five years, sometimes longer.
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