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What are some reasons a that a person breaks out in hives?

3 doctors weighed in
Dr. Anlin Xu
Internal Medicine - Allergy & Immunology
2 doctors agree

In brief: Food allergies,other

Food allergy, drug allergy are common causes of hives.
Patients who are very allergic to grass pollens or animals can sometimes develop hives when touching them. Rarely, people with internal diseases, such as viral hepatitis, autoimmune diseases, HIV can have hives. There are also people who have hives for no reasons. Their hives can be triggered by heat, pressure, menstrual periods and stress.

In brief: Food allergies,other

Food allergy, drug allergy are common causes of hives.
Patients who are very allergic to grass pollens or animals can sometimes develop hives when touching them. Rarely, people with internal diseases, such as viral hepatitis, autoimmune diseases, HIV can have hives. There are also people who have hives for no reasons. Their hives can be triggered by heat, pressure, menstrual periods and stress.
Dr. Anlin Xu
Dr. Anlin Xu
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