Allergic Reaction: Check Your Symptoms
When to See a Doctor
You have answered Yes to:Do you have hives?
See significance of hives if you need information to help you answer the questions below.
Review health risks that may increase the seriousness of your symptoms.

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Call your health professional immediately if you answer "Yes" to any of the following questions.
- Yes
- Yes
Have hives appeared suddenly (within the past 1 to 3 hours) and now cover all or most of your body?
Do you have swelling in your mouth or throat?

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Call your health professional today if you answer "Yes" to the following question.
- Yes
Do you have hives that appeared over several hours today and cover all or most of your body, but you are not having other symptoms?

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You may wait to see if the symptoms improve over the next 24 hours (or specified time period) if you answer "Yes" to the following question.
- Yes
Do you still have hives, without other symptoms, after 24 hours of home treatment?
If you have answered "No" to the above questions, go back to Check Your Symptoms and continue to answer the questions to evaluate your symptoms.
| Last updated: | July 11, 2007 |
|---|---|
| Author: | Sydney Youngerman-Cole, RN, BSN, RNC |
| Reviewed By: | William M. Green, MD - Emergency Medicine, H. Michael O'Connor, MD - Emergency Medicine |
| Editors: | Susan Van Houten, RN, BSN, MBA, Tracy Landauer |
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