Potato is a common food in life, not a medicine, can not treat scars. At present, the main treatment modes for scars are: medication, photoelectric treatment, surgical treatment and so on. There are more types of scars, such as superficial scars, hyperplastic scars, atrophic scars, keloid scars and so on. In the early stage of scar formation, if the scabs have just fallen off, the topical application of cumenexin cream and compound heparin sodium allantoin gel can be given under the guidance of specialists, which can be combined with dye laser and other photoelectric treatments, which are useful for early bright red scars. If the scar formation time is longer, topical drug treatment is usually ineffective, it is recommended to combine with the advice of specialists, through laser abrasion, carbon dioxide fractional laser, intradermal injection, surgical excision and other ways of treatment. Potato is just a food and does not work as a medicine to treat scars. If you want to treat scars on the skin, it is recommended to go to the dermatology department of regular hospitals, cosmetic plastic surgery, and follow the advice of specialists to choose the appropriate treatment plan.