The correct way to dilute the face with white vinegar:
Add a proper amount of warm water to the washbasin, then add 7 drops of white vinegar and stir the warm water until it is completely melted. Soak your face in warm water for about 30 seconds, and then wash your face in the normal way with facial cleanser.
Precautions:
Can not be used for a long time, 2-3 times a month is enough, pay attention to the concentration, add six or seven drops of vinegar. Too much vinegar will damage mucous membrane and skin, cause irritation to eyes and cause swelling of lips.