Patients with onychomycosis who have localized anaerobic bacterial growth can be disinfected with hydrogen peroxide to kill localized anaerobic bacteria. Most patients with inguinitis have acute or chronic inflammation due to localized nail ingrowns into the flesh. For inguinitis accompanied by Staphylococcus aureus infection, the use of hydrogen peroxide disinfection in this case is not able to kill the bacteria. Therefore, when accompanied by local inflammation, 0.5% povidone-iodine gauze can be applied externally on a continuous basis, and at the same time, oral amoxicillin and other anti-inflammatory drugs can be strengthened anti-infection treatment, the symptoms of the relatively mild inguinitis can be achieved a better therapeutic effect. If the patient’s inguinitis is accompanied by the formation of a local abscess, then simply through the drug treatment, the effect is often poor, you can consider surgical incision of the abscess, nail extraction and other methods to cure the inguinitis.