Allergy-Sinus

An allergy is an abnormal, acquired sensitivity to a given substance, including pollen, drugs, or numerous environmental triggers.

Local symptoms are:

Nose: swelling of the nasal mucosa (allergic rhinitis)
Eyes: redness and itching of the conjunctiva (allergic conjunctivitis)
Airways: Sneezing, bronchoconstriction, wheezing and dyspnea, sometimes outright attacks of asthma, in severe cases the airway constricts due to swelling known as anaphylaxis.
Ears: feeling of fullness, possibly pain, and impaired hearing due to the lack of eustachian tube drainage.
Skin: various rashes, such as eczema, hives (urticaria) and contact dermatitis.


ALLERGIES

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