The right half of the scalp hurts when you touch it may be trigeminal neuralgia, infectious inflammation and so on. Trigeminal neuralgia can be treated with carbamazepine or surgery under the guidance of a doctor, and infectious inflammation can be treated with topical mupirocin. 1. Trigeminal neuralgia: the main feature is the sudden stop, light touch can be triggered often lasts 1~2 minutes, the first choice of drug treatment can take carbamazepine, phenytoin sodium, etc., if the drug is not effective, you can choose the closed treatment that is anhydrous ethanol to destroy the sensory nerve cells, as well as the choice of surgical resection of part of the trigeminal nerve sensory root part. 2. Infectious inflammation: folliculitis, boils or carbuncles on the scalp can also cause symptoms of scalp pain, pay attention to cleanliness and hygiene to prevent trauma, enhance immunity, topical medication based on the early ichthyol ointment, tincture of iodine, mupirocin ointment, etc., or antibiotics such as penicillin. The right half of the scalp when you touch the pain should be timely medical clear cause targeted treatment to prevent delays in the condition, the drugs need to be under the guidance of a doctor, do not self-medication.