Silicone gel, recombinant bovine basic fibroblast growth factor gel, and topical lyophilized recombinant human acidic fibroblast growth factor are available for depressed scars. 1. Silicone gel: for pressure sores, trauma, burns, surgery resulting in depressed scars, with the role of softening scar tissue. It should be used only after the wound has healed, and should be used with caution for allergic skin. 2. Recombinant Bovine Basic Fibroblast Growth Factor Gel: It can promote wound healing, and is suitable for indented scars caused by burns, trauma, surgical wounds and so on. Allergic to this product is prohibited, individuals may experience a slight tingling sensation after use, pregnant women, children, lactating women, the elderly need to follow the doctor’s instructions for use of medication. 3. Topical lyophilized recombinant human acidic fibroblast growth factor: for bedsores, vascular ulcers, deep second-degree burn wounds and other depressed scars. It is forbidden for those who are allergic to this product, and some patients may experience slight fever, local itching, wound pain, rash and other discomforts during the process of use. The use of ointment for depressed scars needs to be guided by a doctor, but medication is only effective for proliferative scars (usually 3-6 months after the healing of skin injuries), and old depressed scars need to be combined with photovoltaic, surgical and other methods, and it is recommended that you go to a regular hospital if you want to effectively repair depressed scars.