Swollen nails that hurt when touched may be related to excessive nail trimming or tearing of barbs or biting of barbs, etc. The main treatment modalities include medication and surgery. Medications should be applied under medical supervision. Inguinitis is very common in clinic, mainly after the nail bed is slightly traumatized, secondary infection occurs, causing redness, swelling, pain, and even pus in the tissues around the nail, which belongs to a kind of skin disease. If the nail groin inflammation is swollen and painful when touched, you can first use potassium permanganate solution or hydrogen peroxide in water to soak, local topical application of mupirocin ointment and so on, which can eliminate local swelling and pain. If the abscess has already appeared under the nail, it may last for a long time and will not get better, it is recommended to go to the regular hospital as soon as possible for surgical treatment, such as local incision and drainage surgery, but also combined with the professional doctor’s therapeutic advice, choosing to pull out the whole or part of the nail. During the treatment and recovery period, care should be taken to keep the local area clean and avoid localized squeezing, which will aggravate the pain symptoms. The specific choice of treatment should be based on the actual condition as well as the doctor’s advice.