For some people, the chemicals in shampoos, cosmetics, and detergents can trigger allergic skin reactions. These reactions -- what your doctor calls allergic contact dermatitis-- happen when your ...

A chemical rash often resembles a burn. It may present with swelling or blistering, or have oval-shaped flaky or dry patches. The allergic reaction is usually limited to the area of the skin that ...

The swelling that often comes with hives is called angioedema. Allergic reactions, chemicals in certain foods, insect stings, sunlight, and medications can cause hives. It's often impossible to ...

In fact, it was the American Contact Dermatitis Society’s 2018 Allergen of the Year. An allergic reaction to propylene glycol can cause a skin rash, itching and blistering. Of the 54 inks we ...