<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing itching of the skin and noticed a skin rash. Can you help me understand what could be causing this?  <response>: Based on your symptoms, it sounds like you may have seborrheic dermatitis. This is a common inflammatory skin condition that affects areas with a lot of oil glands, like your scalp, face, and chest. 