Perforation and drainage of pus for onychomycosis is a surgical measure that is performed by punching holes in the nail area to drain the internal pus and improve the symptoms of localized swelling and pain. Inguguinitis is a common infectious lesion in general surgery, most commonly seen in patients with ingrown nails. Due to the patient’s daily habit of over-trimming the nails, the nails continue to grow into the soft tissues on both sides of the nail bed, which may then irritate the local soft tissues and lead to the development of an infectious lesion. After the onset of the disease, the patient may have symptoms of swelling and pain in the lesion area, elevated skin temperature and localized pus. Once the condition is diagnosed, surgical measures can be taken to drain the pus by punching holes in the nail. Perforations are made in the nail area to drain out the internal pus, reducing local tension and improving swelling and pain. At the same time, anti-inflammatory treatment is combined with antibiotic medication to ensure a smooth recovery from localized inflammation. For nail extraction surgery, this type of surgery, the damage is relatively light, and the patient’s postoperative recovery is also better. However, there is a possibility of lesion recurrence.