Allergic dermatitis can cause an itchy, red rash. Shampoo, conditioner, and styling products can all potentially cause this kind of reaction. Many people are also allergic to paraphenylenediamine (PPD ...

If you have symptoms of infection (possibly from scratching itchy red spots on your scalp), you need medical treatment. Red spots on the scalp can be caused by conditions like psoriasis ...

Cherry angiomas appear on the arms, legs, and scalp. Red dots on your skin can be due to ... you may experience clusters of bumps and itchy rashes, known as contact dermatitis.

If you’re having a hard time finding it, a board-certified dermatologist can help. An allergic reaction to shampoo caused a rash on her scalp and eyelid. Hives. These are red, raised, and very itchy ...