If a pimple breaks out, good skin cleaning and reasonable medication can reduce the chances of leaving pimple marks and pits. 1. Do a good job of skin cleaning: If you find a pimple breakout, avoid scratching with your hands, you can use iodophor to sterilize the broken parts to avoid local infection and aggravation of the condition, at the same time, do a good job of daily cleaning, choose a mild toiletry products, to keep the local skin clean. 2. Reasonable medication: can be applied locally mupirocin ointment, erythromycin ointment, compound polymyxin b ointment and other medications, oral cephalosporin or, if necessary, amoxicillin and other antibiotics to fight infection. If the acne broke, in order to avoid scarring, do a good job of skin cleaning, with reasonable medication, generally can be effectively improved, medication needs to be used under the guidance of a physician, it is recommended to go to the dermatology department.