May be too shallow inhalation, subcutaneous scar adhesion. The longer you recover, the better. Take more exercise. There is no effective prescription.

(Dr. Lu Wei from Badachu Plastic Surgery Hospital solemnly reminds me: 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! )