Once a scar is formed, it cannot disappear completely, but the appearance of the scar can be improved by medication. Scars can be removed by applying creams such as retinoic acid cream, fibroblast growth factor gel, compound heparin sodium allantoin gel, and asiaticoside cream ointment, but the effect of removing scars varies from person to person. 1. Vitamin A acid cream:Vitamin A acid cream reduces melanin formation, reduces skin pigmentation, but also induces epidermal hyperplasia, which helps to improve scarring, but the medication may produce burning sensation, erythema, and flaking and other adverse reactions, women are prohibited in the first three months of pregnancy, lactating women are prohibited, allergic to any of the components of the product is prohibited, the eyes are prohibited. 2. Recombinant human basic fibroblast growth factor gel: this product for the mesoderm and ectoderm cells have to promote the repair and regeneration of the role of the wound can promote healing, help to improve the new depressed keloid scar, allergic to this product is prohibited. 3. Compound heparin sodium allantoin gel: this product has anti-proliferative, anti-inflammatory, softening and smoothing effect on scar tissue, can be used for the treatment of various causes of scarring, after the use of the drug may produce itching, rash, capillary dilatation, keloid atrophy and other adverse reactions, allergic to the active ingredients of this product. 4. Asiaticoside cream ointment: this product has the effect of promoting wound healing, but also can remove hyperplastic scar, occasionally with local itching and irritation reaction, allergic to the product is prohibited. 5. Silicone gel: the skin lesions are completely healed after the start of external use, can be inhibited by the principle of newborn scar tissue proliferation to improve the appearance of scar healing. It is recommended that patients choose the appropriate medication under the guidance of a specialist, and not blindly self-medication, so as not to cause adverse consequences.