Hives (Urticaria) Information
http://www.acaai.org/allergist/allergies/Types/skin-allergies/hives/Pages/default.aspx N/A
Symptoms
- Can come and go, lasting minutes, hours, days, several weeks, months or even years
- Two types:
- Acute: hives that last six weeks or less
- Chronic: hives that last or recur for more than six weeks
Causes
Acute: hives resolve when the cause is avoided, removed or treated.
-
Food and additives (peanuts, eggs, nuts, and shellfish)
- Medications such as aspirin and antibiotics (especially penicillin and sulfa)
- Insect stings or bites
- Blood transfusions
- Infections including the common cold, urinary tract infections, strep throat, infectious mononucleosis and hepatitis, or other viral infections
Chronic: gradually disappear over time. However, may be associated with:
- Inflammation of blood vessels
- Rubbing or sctraching
- Constant pressure
- Change in temperature
- Sun exposure
Treatment
- Improve with antihistamines
- Foods: not eating foods that intially started the reaction. Make sure to read labels or ask ingreidents in meals.
- Avoid harsh soaps and tight clothing
- Loose-fitting clothing
- Keep body warm if colder situations cause hives
- Sun exposure: wear protective clothing and apply sun block
- If a specific medication is causing the hives, stop taking it and notify your health care provider
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