Skin reactions can be alarming, especially when they appear suddenly. Many people struggle to tell the difference between ...

However, a number of other conditions — including ringworm, fixed drug reactions, allergic reactions to insect bites, and hives — can cause a similar rash. A person should contact a doctor if ...

PUPPP rashes that occur during pregnancy often feel like hives. The rash starts with itching on your belly, especially your stretch marks. A few bumps appear, which spread and form a large rash.

Some people may experience hives, also known as urticaria, just before or during their period. This is due to hormonal allergies from an increase in progesterone levels during menstruation.