The common allergic reactions and diseases are : allergic asthma allergic rhinitis (hay fever, perennial rhinitis) anaphylaxis urticaria (hives) angioedema allergic contact dermatitis food allergies drug allergy Allergic Rhinitis Allergic rhinitis is a common chronic disease  characterized by repeated attacks of itching of the nose, runny nose and sneezing. It is often associated with allergic conjunctivitis – watering, itching and redness of eyes. Allergic rhinitis develops due to allergic reactions to allergens in the air (like pollen) that can get attached to the mucosa of nose and the conjunctiva. The seasonal allergic rhinitis (also called hay fever) results from an allergy to seasonal pollen while perennial allergic rhinitis is believed to result from sensitivity to house mite dust or other allergens present throughout the year. Allergic Asthma Allergic asthma or allergic asthmatic bronchitis usually presents with a cough or breathlessness and wheezing (abnormal breathing sounds). Allergic asthma occurs from exposure to air-borne allergens. Inhalation of these allergens stimulate immune reactions which results in constriction of the bronchi, and increased mucus secretion. Iti s often associated with allergic rhinitis or other allergic disorders. Exposure to cold, smoke, dust, pollen, animal products (hair, scales) and pollen can precipitate the attack or worsen … Continue reading Common Allergic Diseases, Respiratory, Skin, Drug, Food Allergies