If a thorn or foreign body is lodged in the flesh, it is recommended that the foreign body be removed promptly. If the foreign body is very deep. If it is not convenient to remove it by yourself, you can go to a regular hospital and do it with the cooperation of fractional laser. After the foreign body is removed, the surface should be disinfected regularly with iodophor or alcohol. To prevent secondary infection, take antibiotics for 3 to 5 days as appropriate. In case of metal or rusty products pierced into the body, tetanus vaccination is recommended. If the wound is large, comfrey oil or epidermal growth factor can be used to promote the healing of the wound.