Scars left by dermatitis cannot be removed once they appear, and can only be improved through the use of drugs (silicone gel, etc.), phototherapy and surgical treatment. 1. Use of drugs: for newborn scar tissue, you can apply cumexoside cream ointment, silicone gel and other drugs; for the proliferation of obvious scarring can also be injected locally, such as tretinoin injection and other hormonal closure therapy. 2. Photoelectric treatment: dye laser and fractional laser can be used in the scar area to improve the appearance of the scar by occluding the local capillaries and stimulating the local collagen rearrangement. However, laser treatment is not recommended for keloid patients to avoid aggravating keloid hyperplasia. 3. Surgical treatment: for obvious depressed scars, autologous fat injection and hyaluronic acid filling can be used; keloid reshaping can also be considered for scars that have limited hyperplasia or severely affect the appearance and function. It is recommended that patients who wish to have treatment go to regular medical institutions, strictly follow the specialist’s instructions, standardize treatment, and not blindly use medication.