Whether a scar on the head with no hair growth can be repaired depends on the type and severity of the scar, which can be treated by general treatment, medication (e.g., tretinoin), and surgery under the guidance of a physician. 1. General treatment: you can use elastic bandage, elastic band and other pressure under the guidance of the physician, which can reduce the formation of scar. 2. Drug treatment: local skin lesions can be injected with tretinoin to soften the scar; in severe cases, local injection of fluorouracil, mitomycin C and other drugs can be used. 3. Oral drug therapy: keloid can be used to relieve itching, pain, but also conducive to scar thinning; you can also use Benadryl to reduce itching symptoms. It is recommended that patients consult a doctor for treatment in a timely manner, and strictly follow the doctor’s instructions for medication.