Understanding Allergies -- Symptoms

Reviewed by Carol DerSarkissian on May 30, 2020

Wondering if that discomfort you’re feeling is due to an allergy? The symptoms include:

Call your doctor about allergies if you have:

These could be warning signs of a serious allergic reaction or food poisoning.

Get emergency medical treatment right away if:

Swallowing or breathing becomes tough or painful. You may be having an asthma episode, anaphylaxis, or a heart attack.

You suddenly get skin welts with intense flushing and itching. Your heart may also be beating rapidly. These symptoms may point to the start of anaphylactic shock, a life-threatening allergic reaction. Call 911 right away if you think this may be happening to you.

WebMD Medical Reference



Asthma and Allergy Foundation of America: "Allergy Overview."

American Academy of Allergy, Asthma and Immunology: "Allergies."

The Food Allergy and Anaphylaxis Network: "About Food Allergy." 

WebMD Medical Reference: "Allergies Health Center." 

MedlinePlus Medical Encyclopedia: "Allergy."

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