Scars are known as keloid scars in medicine, and once they appear, they cannot be completely removed, but their appearance can be improved through medication, physical therapy and surgery. 1. Medication: Topical medication such as heparin sodium allantoin gel and cumquat cream ointment can inhibit and prevent scar proliferation, thus improving the appearance of keloid scars. The common adverse reactions to the use of compound heparin sodium allantoin gel are itching, rash, capillary dilatation, scar atrophy. It is contraindicated in those who are allergic to the active ingredients in this product, such as onion extract, sodium heparin, or allantoin; and those who are allergic to sorbic acid and methyl hydroxybenzoate. The use of Centella Asiatica Cream Ointment is occasionally associated with itching and irritation of the local area of application. Allergic to the product is prohibited, avoid using the product before the burns or serious wounds have not healed, pregnant women and allergic individuals should be cautious. 2. Physical therapy: the use of fractional laser, to promote local skin collagen rearrangement and regeneration, to improve the appearance of the scar. 3. Surgery: If the forehead scar is still obvious after the above treatment, surgery can be taken to remove the scar, directly excise the local hyperplasia scar tissue, and then re-plastic cosmetic suture. However, surgery is invasive operation, there is a risk of scarring again. It is recommended that patients who wish to have treatment go to a regular medical institution for consultation and comprehensive treatment under the guidance of a professional physician, and do not abuse drugs privately to avoid adverse consequences.