If a patient has a splinter in the sole of the foot, it can usually be removed at home with small tweezers, but if it cannot be taken out, the splinter must be removed and treated in the emergency surgery department of a specialized hospital. The surgeon will first assess the location and depth of the puncture and whether there is any tissue swelling, infection or pus around it, and choose the best location for the needle to be inserted and removed. If the location of the puncture is relatively deep and the symptoms are relatively serious, or if there is obvious infection in the surrounding area, alcohol or povidone-iodine can be applied to the periphery for disinfection, and after disinfection, it will be incised and removed, and then fixed with medical adhesive tape, and the patient is instructed to take certain anti-inflammatory drugs orally to prevent infection.