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How can you tell if you're allergic to ragweed?

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If your allergies flare up in the late summer or early fall, you’re probably allergic to ragweed. It’s the most common trigger for hay fever. About 1 out of 5 people get a reaction to it.

Ragweed is worse when nights are cool and days are warm and dry.

Its season usually starts in early August and ends in mid-October. Some researchers think climate change may be extending that season.

From: Ragweed Allergy WebMD Medical Reference

SOURCES:

American Academy of Allergy, Asthma, and Immunology: "Ragweed Plants Packed with Pollen Are Back."

American College of Allergy, Asthma, & Immunology: "Sublingual Immunotherapy," "Ragweed Allergy."

Asthma and Allergy Foundation of America (AAFA): "Ragweed Allergy."

Reviewed by Carol DerSarkissian on May 13, 2019

SOURCES:

American Academy of Allergy, Asthma, and Immunology: "Ragweed Plants Packed with Pollen Are Back."

American College of Allergy, Asthma, & Immunology: "Sublingual Immunotherapy," "Ragweed Allergy."

Asthma and Allergy Foundation of America (AAFA): "Ragweed Allergy."

Reviewed by Carol DerSarkissian on May 13, 2019

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What are symptoms of ragweed allergy?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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