In-depth

Acute sinusitis

Acute sinusitis occurs when your sinus cavities become inflamed. Antibiotics, decongestants and corticosteroids may relieve pain and congestion and prevent development of chronic sinusitis.

Alcohol intolerance

Think you have alcohol intolerance? Here's what might be causing your reaction to wine, beer or other beverages.

Allergies

Allergy symptoms can make you miserable and in some cases, they're life-threatening. Here's some information about allergies — and tips on treating allergy symptoms.

Allergy medications

Allergy medications

Bee stings

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

Burning mouth syndrome

Burning mouth syndrome can feel as if you scalded your mouth with hot coffee. Treatment depends on the cause, which can be difficult to identify.

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.

Dyshidrosis

Dyshidrosis is a condition in which small, fluid-filled blisters occur on the palms of your hands or the soles of your feet, causing intense itching.

Egg allergy

Egg allergy can cause a serious reaction in children and adults. Here's how to recognize egg allergy symptoms, and what to do if a severe reaction occurs.

Esophagitis

Several conditions can cause esophagitis. Learn what they are and how to get relief.

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

Lichen planus is an inflammatory disorder that results in lesions on the skin or mucous membranes.

Milk allergy

Milk allergy can cause hives, wheezing and gastrointestinal problems. Avoidance is the primary treatment, but the good news is that many children outgrow 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.

Nonallergic rhinitis

Nonallergic rhinitis is a condition in which the lining of your nose swells, causing a stuffy nose — but no identifiable allergy is involved.

Oral lichen planus

Oral lichen planus, a chronic inflammatory disorder, appears as lesions in the mouth that may cause pain and burning sensations.

Peanut allergy

Peanut allergy can be serious. Find out what you need to know to prevent a life-threatening reaction.

Penicillin allergy

Penicillin allergy is the most common drug allergy. Find out what you can do to avoid potentially dangerous reactions.

Shellfish allergy

Apr. 02, 2014