Paronychia is a purulent infectious disease caused by the repeated irritation of a nail embedding into the flesh, most commonly found on the big toe. If the purulent infection is severe, it may require incision and drainage. If the symptoms are mild, it may be treated with appropriate oral and topical anti-inflammatory medications. To completely cure this condition, surgery is necessary to remove the nail embedded in the flesh and then use sutures to forcibly correct the placement. This can prevent recurrences in future life. Regular walking habits should be maintained without jumping, and wearing shoes that are too tight should be avoided. Dietary and lifestyle habits should also be regulated.