Allergy Test

The Patients usually exhibit ocular itching, redness, burning, tearing and photo phobia (inability to tolerate bright light). Some of them may develop allergic shiners (dark circles below the eyes due to rubbing).

The common symptoms include sneezing, nasal congestion, nasal itching and running nose. Complications include otitis media, Eustachian tube dysfunction, and acute and chronic sinusitis.

Environmental allergens implicated in allergic asthma are house dust mites, animal allergens (especially cat and dog), cockroach allergens, bird feathers, some foods and fungi. Pollutants such as cigarette smoke, vehicle exhaust fumes, and certain chemicals can also trigger an attack of asthma

Peanuts, walnuts, other tree nuts, shrimp, crab, fish egg, milk products, wheat and tomato are usually implicated in food-induced allergies. Typical symptoms include oro-pharyngeal pruritus (itching tongue, lips and throat), vomiting, abdominal cramps and diarrhea. Anaphylactic reaction can involve the respiratory tract leading to angioedema (laryngeal edema), stridor, cough, dyspnea, wheezing and dysphonia.

Contact allergies include three distinct reactions:

• Contact Urticaria: Urticaria is characterized by red, blanching, raised, palpable wheals which can appear anywhere in the body.
• Allergic Contact Dermatitis (ACD): ACD is inflammation of the skin manifested by varying degrees of Erythema (redness), edema (swelling), and vesiculation (blisters). Nickel is the leading cause of ACD in the world. It manifests as dermatitis at the sites where earrings or necklaces containing nickel are worn.
• Autoimmune Urticaria: Autoimmune urticaria is a skin disorder characterized by the recurrent eruption of short-lived wheals accompanied by redness and itching for at least 6 weeks.