Measures to prevent scar proliferation after double eyelids are mainly from skin care, anti-infection treatment and preventive use of medication to remove scars. 1. Skin care. Keep the skin of the surgical site clean, avoid excessive stimulation, maintain a light diet as much as possible, and pay attention to good sunscreen treatment. 2. Anti-infection treatment. Wound infection is an important factor that induces the proliferation of scar tissue, and finally must pay attention to good disinfection of the surgical wound to avoid infection. If necessary, use topical antibiotic treatment, such as mupirocin ointment. 3. Preventive medication. Starting about one week after the cosmetic surgery, you can use some drugs with scar inhibition or scar softening under the guidance of the doctor, which can reduce the chances of scar formation, such as topical mucopolysaccharides polysulfonate cream, cumquat cream ointment and so on. Since scar formation is also related to the individual’s constitution, the first step in preventing scarring is to check the individual’s constitution before the surgery, and double eyelid surgery should not be performed on people with scarring hyperplasia. Specific preventive measures should be carried out under the guidance of the surgeon, and should not be self-medicated or treated.