This article lists some potential causes of rashes in adults. It also looks at some over-the-counter (OTC) treatment options and natural remedies, followed by when a person should contact a doctor.

These skin rashes commonly form on the face ... The virus can later reactivate and cause shingles in adults. Hives (urticaria) are raised welts that form on a patch of skin.

In adults, heat rash typically shows up on parts ... for instance. Other medications cause rashes as a known side effect or ...

They can affect anyone, from babies to adults ... exposed to chemicals that can cause a rash, like fragrances in deodorant, soap, and laundry detergent. Most rashes are not serious.