Scars formed by removing moles, i.e. the scar left behind after the treatment of pigmented moles, once the scar appears, it cannot be completely removed, and can be improved by topical medication, local injection and sealing treatment, laser treatment, surgical excision and other ways. 1. Topical medication: In the early stage of hyperplastic scar formation, you can use cumexoside cream, silicone gel, allantoin gel to inhibit scar hyperplasia; in the case of depressed scar, you can use epidermal growth factor gel. 2. Local injection and closure treatment: the raised scar can be injected with glucocorticoids such as Triamcinolone acetonide to promote scar atrophy and recession. 3. Laser treatment: laser such as fractional laser, erbium laser is also used to stimulate the regeneration and rearrangement of local collagen through the photothermal effect of laser to improve the appearance. 4. Surgery: For more obvious scarring, skin resurfacing, scar reshaping and other surgical treatments can be applied to improve the appearance. Patients who wish to have scar treatment are advised to go to regular hospitals for consultation and targeted treatment under the guidance of specialized doctors to avoid adverse consequences.