Irritant contact dermatitis occurs more often than allergic contact dermatitis. You develop a rash when a chemical substance irritates the skin’s outer layers. The rash is more painful than itchy.
Common causes of irritant contact dermatitis include:
- Acids.
- Alkalis like drain cleaners.
- Body fluids, including urine and saliva.
- Certain plants, such as poinsettias and peppers.
- Hair dyes.
- Nail polish remover or other solvents.
- Paints and varnishes.
- Harsh soaps or detergents.
- Resins, plastics and epoxies.