The high incidence of periarthritis occurs from September to October each year, with the number of cases approaching about half of the year. The majority of patients believe that perineuritis is not a serious disease and will be cured without seeing a doctor. Therefore, the best treatment period is missed. On the other hand, nails should be trimmed reasonably during the treatment process to avoid injury. Once there is a suspicious injury should be treated promptly, appropriate to reduce activities, wear loose socks and shoes to improve the effectiveness of treatment and shorten the treatment time. Early treatment of perineal nail infection is the key to the whole treatment. Before the local inflammation spreads, or once the toe (finger) local damage is done, the treatment can shorten the course of the disease. Early treatment methods: 1, the affected area coated with tincture of iodine (2%), three times a day, disinfection of the affected area after the application of anti-inflammatory and pain relief cream or ichthyolite ointment, once a day; reduce activity, elevate the affected limb, local hot compresses. In general, 2d-3d can be improved. Once the inflammation spreads to the whole nail perimeter, in addition to local drug changes, appropriate systemic medication should be applied. Wait for the pus to form and then drain thoroughly. In the process of drainage, partial nail extraction should be done early according to the site of pus penetration. 2.There is another situation where pus first forms in the nail groove on the injured side, and the skin at the nail groove breaks down after the pus is drained, and the flesh buds after the pus is drained partially cover the toenail at the nail groove, resulting in the secretion at the nail groove not being drained. Sometimes, due to many activities and the extrusion of shoes, the granulation bleeds and necroses, and repeated infections persist for a long time. In most cases, the nail is completely removed and the buds are cut off. After the nail is completely removed, it needs to be changed for a long time until the new toenail grows out.