Deep drainage of surgical sutures can be treated by suture cleaning and medication (e.g. penicillin). 1. Suture cleaning: when the incision grows well, the non-absorbable suture can be cleaned up, which is conducive to the healing of the wound; when the incision heals poorly, the suture can be cleaned up and then replaced with another suture to re-clean the wound and close it, so as to prevent infection. 2. medication: when the incision appears to be infected, you can use antibiotic treatment under the guidance of a physician, which is conducive to limiting inflammation and facilitates the recovery of the incision, commonly used drugs are penicillin, amoxicillin, cefuroxime sodium and so on. It is recommended that patients go to the hospital in a timely manner, under the guidance of the physician to carry out the relevant treatment, strictly comply with the doctor’s instructions to use medication.