Antihistamines Directory
Anithistamines work by blocking histamine, which can cause allergy symptoms. Side effects of antihistamines may include dry mouth, drowsiness, and more. Follow the links below to find WebMD's comprehensive coverage about how antihistamines work, who should take them, and much more.
Medical Reference
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Antihistamines for Allergies
WebMD explains types of antihistamines and their use for allergies.
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Sinus Infection (Sinusitis)
Sinus infections, also known as sinusitis, can be hard to distinguish from other respiratory ailments. Learn about the symptoms, causes, and treatments of sinusitis.
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How To Treat Poison Ivy, Oak, and Sumac
Find out what kinds creams or home remedies can help ease the itchy rash of poison ivy, oak, or sumac.
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Drugs to Treat Allergy Symptoms
WebMD provides a comprehensive overview of drugs used to treat and prevent allergic reactions.
Features
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Blocking Allergy Symptoms: How Pretreatment Works
Tackle allergies before they start, and you could be breathing a lot easier.
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Tips for Treating the Cold and Flu
What to stock in your survival kit for fighting the cold and flu this winter.
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An Allergy-Free Vacation: It's Possible With Planning
Beaches and mountains are the best bet for allergy sufferers.
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How to Survive Spring Allergy Season
Get tips on how to manage your hay fever with drugs, nasal sprays, allergy shots, and more.
Slideshows & Images
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How to Soothe Your Child’s Allergies
Help them fight sneezing, itching, and stuffy or runny noses that come with allergies. See solutions from natural remedies to information on medicines that can help ease your child’s allergies to pollen, dust, dander, and more.
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How to Get Allergy Relief at Home
Get tips for things you can do in your house to ease the sneezing and itchy eyes that are brought on by hay fever.
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Top Allergy Kit Must-Haves
Be prepared for your next allergy attack no matter where you go. See which medicines you need in your allergy kit to help relieve symptoms.