If you notice painful red bumps, you may suffer from dyshidrotic eczema

Eczema, or dermatitis, affects about 35 million Americans. It usually starts from childhood, but often persists in adulthood. Symptoms include red, swollen skin, as well as liquid-filled pimps that can ooze and form crusts. Although not contagious, eczema can be hereditary and is often triggered by allergies.