Scalp long touch painful pimples, the possible causes are folliculitis, herpes, seborrheic dermatitis, etc., can be adjusted through medication and general treatment and other measures. 1. Folliculitis: mainly scalp hair follicles secondary bacterial or fungal infection caused by inflammatory reaction, will cause scalp acne, and may be painful to touch. Bacterial infection drugs mainly choose antibiotic treatment mainly, can be used externally erythromycin ointment, mupirocin ointment, etc., but also oral tinidazole tablets, amoxicillin capsules and other antibiotics. Fungal infections require the use of antifungal drugs such as ketoconazole ointment. 2. herpes: herpes virus infection caused by scalp herpes, may also lead to scalp pimples painful to touch, there may be the formation of localized ulcers oozing fluid and other symptoms. You can use topical acyclovir ointment, penciclovir cream and other antiviral drugs; if the area is large, intravenous drip ganciclovir or acyclovir injection for antiviral treatment. 3. Seborrheic dermatitis: Seborrheic dermatitis can also cause painful acne on the scalp. The diet should be light, avoiding oily and sugary foods. Also consider using selenium disulfide and ketoconazole lotion to control oiliness. Scalp pimples painful to touch, you should avoid scratching to keep the scalp clean and hygienic, dietary choices of light food, quit smoking and alcohol, do not eat chili peppers, seafood and other ingredients. At the same time, you should go to the hospital in time for examination, all the above treatments should be carried out under the guidance of the doctor.