Gray nail ingrown nail may be non-suppurative stage or suppurative stage, etc. The causes are different and the treatment methods are different, mainly surgical treatment and drug treatment. 1. Non-suppurative stage: Usually bactericidal and anti-inflammatory topical antiseptic antiseptic, such as ichthyol ointment, or antibiotic ointment, such as fusidic acid cream, mupirocin cream and so on, will be used. It is also necessary to cut off the nails that have grown into the nail bed, and local irradiation of helium-neon laser can also help eliminate inflammation and tissue repair. 2. Suppurative stage: If there is local pain and swelling, abscess formation, surgical incision and drainage. When the damage is deep, broad-spectrum antibiotics can be used for systematic treatment. In the case of obvious loosening of the nail or serious accumulation of pus under the nail, the removal of the nail can be considered. In addition, after the symptoms of inguinitis are relieved, patients need to actively treat gray nails to prevent the recurrence of inguinitis.