Hives happen when your body releases histamine due to various triggers, such as foods, drugs, insect bites, or infections. Treatment involves avoiding triggers, using antihistamines, ...

Medically reviewed by Daniel More, MD Hives (urticaria) are a common skin reaction that causes bumps, raised patches, or both ...

No matter what’s happening inside your body, hives look the same. They’re usually red or skin-colored bumps that can blanch (turn white) when you press on their center.

WebMD explains the hives you get with cholinergic urticaria from heat, sweat, or exercise. Learn more about causes, treatments, and prevention tips for them.

However, COVID-19 hives can appear anywhere on the body, including on the joints. There is one type of rash associated with COVID-19 that primarily affects your joints; it’s known as COVID-19 toe .

There are a variety of causes that can result in a rash on the hands. Learn more about the potential causes and when a person should seek help, here.

Hives also "move around your body quite a bit," Walls says. You could have hives for several days, but the patch of hives may move from area to area, he adds.