Acne is most often considered clinically as a result of acne. Acid-brushing treatment is not recommended when a pimple breaks out because acid-brushing treatment when a pimple breaks out may lead to worsening of the infection. Acid brushing is mainly used to dissolve the constitutive substances between keratin through the liposolubility of salicylic acid and fruit acid, so as to detach the accumulated keratin layer and accelerate the skin metabolism, and salicylic acid and fruit acid are corrosive and irritating. And acid-brushing treatment after a pimple breaks may burn the local tissues of the skin, leading to scarring or hyperpigmentation, so acid-brushing treatment is not recommended after a pimple breaks. If the pimple is broken, you can consider applying mupirocin ointment and compound polymyxin b ointment locally for treatment to avoid local soft tissue infection, and phototherapy such as red and blue light can also improve the symptoms to a certain extent. Acne removal, you can go to the regular hospital, to find a professional doctor for treatment.