Simple incision can solve it, but the wound will turn red for a while. Shengsi and Shanghai are very close. You can go to Shanghai Ninth Hospital, and any plastic surgeon can handle it.

(Dr. Xu Haiting from the Second Hospital of Warm Medicine solemnly reminds me that it is impossible to fully understand the condition because I can't see the patient face to face. The above suggestions are for reference only. Please go to the hospital for specific diagnosis and treatment under the guidance of a doctor! )