At present, I think scar plastic surgery is needed.
Since you are in Shanghai, you can go to the plastic surgery department of Shanghai Ninth People's Hospital for consultation first, or you can have surgery there.
Beijing China Academy of Medical Sciences Plastic Surgery Hospital Liu
(Dr. Liu solemnly reminds me that because I can't see the patient face to face, I can't fully understand the condition. The above suggestions are for reference only. Please go to the hospital for specific diagnosis and treatment under the guidance of a doctor! )
Liu ba da Chu plastic hospital