If it occurs around the time of puberty, the face is accompanied by papules, blackheads, acne, etc., while squeezing out white fluid and the rash is small, acne is considered more likely. It is recommended not to pick and squeeze, and can be treated with topical peroxymethylphenidate gel with adapalene gel. If the rash is single, with pus on the surface and white liquid after squeezing, folliculitis or boils are more likely to be caused by bacterial infection, and boils are more widespread than folliculitis.