Treatment of onychomycosis of feet and thumbs should be carried out as soon as possible in the early stage. If there is local redness and swelling, the condition should be controlled with anti-inflammatory liquid. Iodophor and anti-inflammatory ointment can be applied externally to the affected part of onychomycosis to directly play the role of anti-inflammatory treatment. Antibacterial ointment can also be used for external application. The commonly used ointment is fusidic acid cream and erythromycin ointment, which have good effects on the treatment of early paronychia. The paronychia should be found as soon as possible and treated as soon as possible. If it is not treated in time, it is easy to become suppurative. Once there is suppuration that needs to be treated, it can be externally coated with Longzhu ointment. If the suppuration is serious, it needs to be cut open to drain the pus. Even if it is serious, it needs to pull out the nail for treatment. As long as the pus is removed, it will be good for the treatment. Anti inflammation treatment is also required for treatment. Oral antibiotics, such as cephalosporin, amoxicillin and other drugs can have therapeutic effects. For recurrent paronychia, inflammation is generally controlled before nail removal for targeted treatment. Hyperplasia granulation tissue can be cured only after removal.