Significant swelling, itching, pain, and thickening of the finger with localized redness and swelling are more likely to be caused by infection, which can be secondary to trauma resulting in lacerations, or localized foreign body residue. Local ultrasound and x-ray should be performed promptly, and for patients with significant abscess formation, an incision and drainage should be performed under local anesthesia, choosing the area with the most pronounced fluctuation, usually on the lateral side of the finger. It also requires anesthetic support, usually lidocaine for regional block anesthesia of the finger root, intraoperative separation of the abscess cavity, thorough postoperative dressing changes as well as drainage, and should be combined with anti-infective therapy, choosing broad-spectrum penicillin sodium for intravenous administration. The finger can be elevated during treatment to reduce swelling locally and to provide a therapeutic effect.