Hives: What It Is, Causes, and How It Manifests
What hives welts look like, why they occur, how the acute form differs from the chronic one, and in which cases a doctor is needed.
What hives welts look like, why they occur, how the acute form differs from the chronic one, and in which cases a doctor is needed.
An itchy rash usually resolves within a few days, but swelling can develop within minutes. We explain the acute and chronic forms and the signs of dangerous swelling.