Shanghai is a good Chinese medicine for treating paronychia. If paronychia patients are serious, they always put iodine at home. Whenever toenail paronychia occurs and the skin is slightly damaged, wipe it repeatedly with iodine, or soak your toes directly with iodine. Iodine has the function of disinfection, which can help skin heal and prevent lesions. Treating paronychia with iodine rubbing should focus on the maintenance of quantity. Rub it frequently every day, preferably 4-6 times a day, each time lasting about 20 minutes. Only when the skin of toes turns white can the curative effect of paronychia be achieved. /span