In-depth

Alcohol intolerance

Allergies

Allergy medications

Bee stings

Bee stings — Comprehensive overview covers prevention, treatment of bee stings.

Chronic hives (urticaria)

Chronic sinusitis

Chronic sinusitis involves long-term inflammation or infection of the sinus cavities. Medications can help, and in rare cases surgery can treat this painful condition.

Dust mite allergy

Dust mite allergy, an immune system reaction to inhaled dust mite "debris," causes hay fever symptoms and may cause allergy-induced asthma.

Egg allergy

Eosinophilic esophagitis

Esophagitis

Food allergy

Food allergy symptoms can make you miserable. Unfortunately, there's no cure — but there are steps you can take to keep your symptoms in check.

Milk allergy

Nasal polyps

Nasal polyps, inflammation-related growths in the nasal passages or sinuses, can block the flow of air and fluid in your nose.

Nickel allergy

Nickel allergy is a condition in which contact with items containing nickel causes an itchy, red rash usually at the site of contact.

Peanut allergy

Penicillin allergy

Shellfish allergy

April 02, 2014