It usually takes about 7 days before you can wash your face after facial nevus. Mole is also called pigmented nevus in medical science, which is usually found on the face, limbs and trunk. They are mainly black, blue, yellow-brown or purple in size, which may or may not protrude from the surface of the skin, and hair may grow in the center of the mole. It usually takes 5-7 days for the scab to fall off. Before the scab falls off, try to avoid washing your face and contacting water which may lead to bacterial infection, once infection occurs, it may leave scars and affect the beauty. It is generally recommended to use topical antibiotic ointment to prevent infection after nevus. After the nevus, patients need to pay attention to quit smoking and alcohol, and avoid eating spicy and stimulating food, such as onion, ginger, garlic, etc. In addition to temporarily not washing the face after facial nevus, it is also necessary to avoid scratching the local wound to avoid causing infection.