Symptom Checker
What's causing your foot pain? Why does your child's throat hurt? And what should you do about it? Use this guide to discover the most common causes of the most common symptoms. ... [... more]
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Acute Sinusitis
It's an uncomfortable condition. The common cold virus is the most frequent cause, although other triggers include bacteria or allergies. Most colds resolve with time, but nearly 2 percent develop into acute ... [... more]
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Allergic Rhinitis
Over-the-counter medications may be enough to manage your mild hay fever symptoms. But if your signs and symptoms are more severe -- or if hay fever is a year-round nuisance -- see an allergy specialist for ... [... more]
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Allergy, Food
Many people believe they're allergic to specific foods. But true food allergies aren't nearly as common as you might think. About 1 percent of adults and 5 percent of children actually have a true food allergy -- an ... [... more]
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Allergy, Latex
Latex allergy is a reaction to certain proteins found in natural rubber latex, a product manufactured from a milky fluid derived from the rubber tree (Hevea brasiliensis) found in Africa and Southeast Asia. If you ... [... more]
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Allergy, Mold
If you have asthma caused by mold allergy, the best defense is to avoid sources of mold spores -- airborne seeds you can easily inhale. Completely avoiding a substance as common as mold may be difficult, though. ... [... more]
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Allergy, Peanut
Peanut allergy affects approximately 1.5 million people in the United States. As the most common cause of life-threatening allergic reactions (anaphylaxis), peanut allergies account for 80 percent of fatal or near ... [... more]
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Chronic Sinusitis
Chronic sinusitis can be a miserable condition that significantly impairs your quality of life. If you have chronic sinusitis, you may have difficulty breathing through the nose, experience frequent headaches and ... [... more]
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Nonallergic Rhinitis
Although nonallergic rhinitis is more annoying than harmful, it can affect your quality of life. A variety of factors may trigger symptoms of nonallergic rhinitis, including infections, environmental irritants, ... [... more]
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Allergy Skin Tests
If you want to start immunotherapy -- a series of injections intended to increase your tolerance to allergens -- you need either a skin or blood test to identify the substances that trigger your allergies. Blood ... [... more]
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Allergic Reactions
Drug allergy and other drug reactions: Are you at risk? ... [... more]
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Allergy Tests
Allergy testing in kids: How early can it be done? Ask an allergy specialist Types of allergy tests [... more]
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