After the scab should generally wait for its natural fall off, if the scab does not fall off for a long time, you can use cream to soften the scab, to promote the acceleration of its fall off. The scabs can fall off naturally in about ten days, during which the local area should be kept clean and dry as much as possible, avoiding rubbing with hands, etc., and can be sterilized with iodine povidone as appropriate. If repeated infections occur, it will easily lead to prolonged scabbing. If the scabs do not fall off for a long time, thicker scabs, etc., you can apply polymyxin B ointment to soften the scabs, which can accelerate the speed of its fall; pus accumulated under the scabs should be treated with erythromycin ointment. If the scabs can not fall off and other abnormal phenomena, go to the hospital in time for examination, the use of drugs should follow the doctor’s instructions.