Hives are usually an allergic reaction. Hives usually appear as red welts that are raised on the skin. A rash is usually much smaller in appearance and many times looks like tiny pimples.
An area of skin,large or small, it's raised or puffy has a smooth surface which usually itches,
you have hives. A rash is red bumpy,spotchy, feels rough and doesn't itch.
Hives is commonly distinguished by itchy, red welts on the surface of the skin. Hives is usually caused by an allergic reaction, so think if you've tried anything new lately.
