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.

Bronchiolitis

Bronchiolitis is an infection of the lungs' airways that starts out like a cold but progresses to coughing and wheezing. It's common in infants.

Chronic cough

More than an annoyance, a chronic cough can significantly affect your quality of life. Find out how it's diagnosed and treated.

Chronic daily headaches

Chronic daily headaches strike nearly every day. Aggressive initial treatment and steady, long-term management can help reduce pain and lead to fewer headaches.

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.

Cluster headache

Cluster headaches usually occur repeatedly on one side of your head and cause intense pain that feels like a stabbing sensation in your eye.

Common cold

You've got a cold, or you're trying to prevent getting one. Here are some timely tips.

Common cold in babies

Do you feel as if you're constantly wiping your baby's nose? Learn to recognize, treat and prevent the common cold.

Cystic fibrosis

Earlier detection and better treatments have improved the outlook for people with cystic fibrosis.

Drug addiction

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.

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.

Group B strep disease

A common bacterium, group B strep may cause serious illness, especially in newborns, older adults and people who have certain chronic health conditions.

Headaches in children

Children of all ages experience headaches, but the causes aren't all the same. Here's how to help your child.

Humidifiers

Humidifiers can provide soothing relief of dry skin, asthma and other conditions during the winter months. But don't let yours become a household health hazard.

Humidifiers

Humidifiers can provide soothing relief of dry skin, asthma and other conditions during the winter months. But don't let yours become a household health hazard.

Influenza (flu)

Nasopharyngeal carcinoma

Nasopharyngeal carcinoma is rare in the United States but more common in some other parts of the world.

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.

Rebound headaches

Rebound headaches — Is your pain medication causing more headaches than it cures?

Rubella

Rubella, a contagious viral infection, is most dangerous to pregnant women. Rubella can be prevented with the combined measles-mumps-rubella vaccine.

Shellfish allergy

Sinus headaches

Sinus headaches are often confused with migraines. Proper diagnosis and treatment are the keys to relief.

Whooping cough

Whooping cough is a serious lung infection that's especially dangerous in young infants.

Mar. 27, 2013