You can not wash your face until more than three days after eyeliner tattooing. Eyeliner tattooing is the use of mechanical equipment to inject biological pigments through the skin into the dermis layer under the skin, so that the pigments attach to the dermis layer, thus achieving the effect of tattooing eyeliner. Eyeliner tattooing will inject a lot of small holes in the skin, then bacteria and viruses may enter through the small holes. If you wash your face too early, the water is not completely sterile and will be mixed with bacteria and viruses, which will easily reach the eyeliner, that is, the dermis under the skin, through the small holes, which may cause localized infections. Once infected, the effect of eyeliner will be seriously affected, and if the infection is localized, oral antibiotics may be needed, and if the infection spreads to the whole body with the blood circulation of the face, intravenous antibiotics may be needed. Therefore, it is best to start washing your face slowly after three days or more, and avoid irritating the wound by not using too cold or too hot water when you start washing your face.