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 ...

Chemicals in hair dyes may cause allergies for some people. Around 38% of people who color their hair report having an allergic reaction to hair dye. The most common allergic reaction to hair dye ...

The chemical sunscreen ingredients that have been found to most commonly cause allergic reactions in the skin are oxybenzone (benzophenone-3), dibenzoylmethanes, cinnamates, and benzophenones ...