The wound has left a scar. It is impossible to remove it if you want to. However, some physical methods can be used to make the scar smaller or less obvious. Some commonly used ointment drugs, such as Beifuji containing epidermal growth factor or fibroblast growth factor, and some Chinese herbal moist burn ointment, can reduce scar formation. After the wound is healed, asiaticoside cream, hirudoid ointment, compound heparin sodium allantoin gel, namely Kangruibaolai, can be used for treatment. Kangruibao contains onion extracts that have been proven to help reduce scar formation. Medema also contains onion extract, which is also a medicine specially used for scar formation. In addition, drugs containing silicone components are recognized as good medicine for scar removal, such as Buck and Beishugen ointment, which are applied every day. It can also reduce scars through physical therapy. If it is a patient with scar constitution and the scar is especially large, surgery can also be considered to remove the scar. Surgical scar removal is also a good choice. No matter what method is used, it is recommended to go to the cosmetic surgery department of a regular hospital for corresponding consultation.