Red depressed scars, clinically referred to as newborn depressed scars, can now be filled, fractional laser, surgery and other methods to improve their poor appearance. 1. Injection filling: hyaluronic acid can be injected locally, which can fill up the depression and improve the symptoms. 2. Fractional laser: Fractional laser is a commonly used laser technology, which is mainly used to produce a tiny treatment area on the surface of the skin, which can stimulate the proliferation of its own dermal collagen fibers, thus improving the depressed scar. 3. Surgery: If the depressed scar is obvious, and the effect is not obvious after the above treatment, surgery can also be used, but after the surgery, there is a possibility that the scar will be formed again, and this treatment can be combined with the laser and the use of silicone preparations and other methods of treatment. Patients who wish to have treatment are advised to go to a regular hospital and choose the appropriate treatment method under the guidance of a specialized doctor. If medication is needed, it is recommended to use medication under the guidance of a doctor, and not to blindly use medication on your own to avoid adverse effects.