WebMD explains the causes, symptoms, and treatments of postnasal drip.
WebMD explains a deviated septum, including its causes, symptoms, and treatment.
WebMD explains nasal polyps, including theories about what causes them, their symptoms, and their treatment.
Casein Allergy Overview
WebMD discusses what casein is, why it can trigger allergies, what foods contain casein, and how to prevent or treat casein allergies.
Can I Manage Allergies With Over-the-Counter Drugs?
You can go to your doctor for allergy treatment, but you may want to try over-the-counter allergy medicine first. Many people find that non-prescription allergy medicine helps their allergy symptoms.
Skin Testing for Outdoor Allergies
If you sneeze and sniffle and you think it's because of pollen or mold, you may need allergy skin testing to be sure.
Tree Pollen Allergy
Tree pollen is a common allergy trigger. WebMD explains which trees cause the most problems and how you can keep your tree pollen allergy symptoms under control.
Latex and Food Allergies: What's the Link?
If you’re allergic to latex, some foods may trigger a reaction. See which foods to watch for.
Allergy or Side Effect?
How do you know the difference between a drug allergy and a drug side effect? Learn the difference between allergic and non-allergic drug reactions.
Are Allergies Inherited?
Is a child more likely to have allergies if one or both parents has allergies too?