Early treatment can include hot water immersion or hot compress of the affected finger, applying ointment, physical therapy, elevating the affected limb, and other therapies, which are generally effective. If there is pus, it should be drained promptly. Finger root nerve block anesthesia or local anesthesia can be used; elevate the affected limb, use a rubber band to tie the base of the finger, to temporarily block the blood supply to the finger; then perform surgery. For unilateral paronychia, a longitudinal incision can be made along the posterior nail fold, the skin margin can be flipped up, the pus cavity can be cleared, and an oil gauze can be placed for drainage. A small piece of the posterior nail fold can also be removed. If the infection has spread to paronychitis around the nail or an abscess under the nail, the extent of the infection should be considered, and part of the nail or all the nails should be removed. When removing the nail or part of the nail, a flat and rounded剥离器 should be used to separate the nail side fold, the posterior nail fold, and the nail bed to avoid injury to the nail bed and nail matrix tissue. When the nail is fully free, use hemostats or needle holders along the longitudinal axis of the finger to pull out the nail shell, and check the完整性 of the pulled-out nail in detail. If there are any defects, the remaining nail fragments should be removed to avoid affecting wound healing. After nail removal, a new nail can generally cover the nail bed completely after 3 to 4 months, as long as the infection focus has not been destroyed or the nail bed or nail matrix has not been damaged during surgery, the new nail generally does not deform.