Head oil secretion more hair oil, accompanied by scalp itching, dandruff more, red dots or red patches on the scalp is seborrheic dermatitis of the head, with Kang Wang shampoo shampoo 2 times / week, red patches of the site rub ketoconazole ointment. At first there are red dots on the head, no pain or itch did not draw attention to it, leading to further development of the disease, so that the red dots treatment fusion into a film, red patches with white scales, the scales will be snapped off after the dotted bleeding, this is head psoriasis, oral anti-silver particles affected area rub vitamin A acid ointment. After dyeing the hair or eating a certain drug leads to red spots on the scalp, itchy, consider that it is caused by allergies, oral paracetamol, benadryl and other anti-allergic drug treatment, the affected area rub furnace glycolic lotion, away from allergens, medication 3-7 days red spots can subside. These causes of red spots on the scalp during treatment can not eat spicy, fried food, avoid smoking and alcohol, do not stay up late, otherwise the symptoms will worsen.