1, three days before operation, the operator was required to take orally Radix Isatidis granules and drip metronidazole or other broad-spectrum antibiotics intravenously to create a good physical environment for the whole lip bleaching operation. 2. From three days before the operation, the operator is required to avoid eating, mainly spicy and irritating foods and raw garlic, raw onions and raw peppers. In addition, peanuts, melon seeds, seafood and other foods are not edible, and taboos should run through the entire lip gloss bleaching process until the wound is completely healed, usually about two days. 3. Choose a suitable time. Generally, women should not do lip color bleaching during menstruation, and it is better to choose one week after menstruation. 4. Should know whether the operator's lips often or seasonal blisters. If so, vitamin C should be taken orally in addition to intravenous drip or oral antibiotics three days before operation; Vitamin C and antiviral drugs should still be taken orally within five days after operation. 5, according to the customer's age, skin color and lip color to prepare the right color. If the lips are shallow or young, you can choose red, crimson and vermilion; Older people or people with dark lips should choose light red instead of brown, otherwise it will form unhealthy pig liver color on their lips. 6, beauticians must wear masks when operating, hand disinfection with 75% alcohol, all operating instruments must be strictly disinfected, strict aseptic operation. Oral cleaning and lip disinfection should be carried out before operation, and the operator should be required to rinse his mouth with mouthwash. Generally, 75% alcohol cotton balls are used to disinfect the lips three times from the inside out. 7. One person, one needle and one pigment must be used to avoid cross infection. 8. People with poor coagulation mechanism and people with allergies and scars are generally not suitable for lip drift. 9. Adjust the needle tip length before starting, generally 1.8MM is appropriate. 10. Before the operation, the lip line left on the lips during the design must be removed to avoid infection.