Sinus and Allergy Doctors
An allergy is when the immune system has a misguided reaction to a foreign substances. This allergic reaction is misguided because these foreign substances are usually harmless. The substances that trigger this allergic reaction are called allergens. Examples include pollens, dust mite, molds, danders, and certain foods. The most common allergic conditions include hay fever (allergic rhinitis), asthma, allergic eyes (allergic conjunctivitis), allergic eczema, hives (urticaria), and allergic shock (also called anaphylaxis and anaphylactic shock).
Sinuses are air-filled cavities in the dense portions of the skull bone. The sinuses are formed in four pairs. The frontal sinuses are positioned behind the forehead, while the maxillary sinuses are behind the cheeks.
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