Scars are generally referred to as keloid scars, and the methods to stop the itching of keloid scars include medication, physical therapy, and surgical treatment. 1. Medication: Oral histamine antagonists such as Trinilast can be taken as prescribed by the doctor, which has the effect of relieving itching and pain. Can also be used externally tretinoin, compound betamethasone and other drugs, with anti-inflammatory and anti-itching effect, helps to reduce the size of the keloid. 2. Physical therapy: Pulsed dye laser is more effective in treating keloid scars, through the high energy of laser, it can inhibit and reduce the discomfort of keloid scars. 3. Surgery: Surgical excision, skin grafting and flap transplantation can also help to improve the local itching symptoms. It is recommended that keloid patients go to a regular hospital, under the guidance of a professional doctor for treatment, the above drugs should be used as prescribed by the doctor.