6 doctors weighed in:

What cause hives and inflammation?

6 doctors weighed in
Dr. Alex Martinez
Internal Medicine - Allergy
4 doctors agree

In brief: Allergic reactions

Hives & angioedema (deep tissue inflammation) are most often caused by things ingested (like foods & medicines), stinging insects, and latex allergy.
They can also be caused by an underlying condition such as an autoimmune condition or blood disorder. Sometimes they result from direct physical activation of the skin such with exercise & cold. In many cases the cause is difficult to pinpoint.

In brief: Allergic reactions

Hives & angioedema (deep tissue inflammation) are most often caused by things ingested (like foods & medicines), stinging insects, and latex allergy.
They can also be caused by an underlying condition such as an autoimmune condition or blood disorder. Sometimes they result from direct physical activation of the skin such with exercise & cold. In many cases the cause is difficult to pinpoint.
Dr. Alex Martinez
Dr. Alex Martinez
Thank
Dr. Martin Ostro
Internal Medicine - Allergy & Immunology

In brief: Non-allergic hives

Most patients for whom a cause of hives is found are allergic to a food or medication.
If hives last for over 6 wk (chronic hives) 80% are not allergic and no cause is found. In children and many adults viral infections, e.g. Colds, stimulate histamine release in the skin causing hives. Some patients have antibodies against the cells in the skin containing histamine, leading to histamine release.

In brief: Non-allergic hives

Most patients for whom a cause of hives is found are allergic to a food or medication.
If hives last for over 6 wk (chronic hives) 80% are not allergic and no cause is found. In children and many adults viral infections, e.g. Colds, stimulate histamine release in the skin causing hives. Some patients have antibodies against the cells in the skin containing histamine, leading to histamine release.
Dr. Martin Ostro
Dr. Martin Ostro
Thank
Get help from a real doctor now
Dr. Christopher Crosby
Board Certified, Dermatology
12 years in practice
93K people helped
Continue
108,000 doctors available
Read more answers from doctors