Scalp pain touching the hair are painful, consider excessive hair pulling, contact dermatitis, herpes zoster and so on. 1. Excessive hair pulling: If you usually comb your hair tightly, it will pull on the scalp, and prolonged pulling will cause pain. 2. Contact dermatitis: If you use a poor quality shampoo or hair care products, an allergic reaction occurs, contact dermatitis will occur, the mild manifestation of erythema, mild edema, there may also be dense pimples, severe swelling will be more pronounced, pimples, blisters and even large blisters, patients will appear scalp pain touching the hair all the symptoms of pain. 3. Herpes zoster: this is caused by varicella zoster virus infection, mainly will appear nerve and skin symptoms, the beginning of the main pain, and then appear rash, manifested as papules and blisters, may occur in any part of the body. Scalp pain touching the hair are painful there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.