The thumb nail into the flesh is considered to belong to the inguinitis, you can through the general treatment, drug treatment, surgical treatment and other measures to adjust. 1. General treatment: keep the skin clean and hygienic, avoid extrusion, avoid force, reduce local stimulation, can be washed, soaked and other ways to soften the nails, carefully cut or excise the excess nails into the flesh. 2. Medication: You can use tincture of iodine to sterilize the nail, and apply ichthyolite ointment, mupirocin ointment and other medications to treat the condition. 3. Surgical treatment: If the symptoms cannot be relieved by the above measures, surgical treatment can be carried out, such as local incision and drainage to discharge purulent secretions, or surgical treatment measures such as nail removal. Nail groin infection need to go to the hospital for examination, all drugs need to be used under the guidance of a professional doctor.