In-depth

Acute sinusitis

Alcohol intolerance

Allergies

Allergy medications

Bee sting

Burning mouth syndrome

Chronic hives (urticaria)

Chronic sinusitis

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.

Dyshidrosis

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.

Lichen planus

Milk allergy

Nasal polyps

Nickel allergy

Nonallergic rhinitis

Oral lichen planus

Peanut allergy

Penicillin allergy

Pet allergy

Shellfish allergy

April 02, 2014