The thickening of the nail can be treated by applying Amorphophallus Hydrochloride, and if the recovery of the nail is poor, it is also necessary to carry out nail extraction. If the nails are thickened after being smashed, it is considered to be gray nails caused by trauma, and local application of antifungal drugs such as Amorphophallus Hydrochloride can play a very good therapeutic effect. It is recommended to use the medication 1~2 times a week and insist on it for half a year to achieve the purpose of cure. Smashed nails, resulting in damage to the nail bed, and poor treatment during and after surgery also tend to thicken the nails. At this time, you need to carry out nail extraction treatment, so that the nails regrow, but the nail extraction treatment has a certain degree of risk, you need to choose the regular medical institutions to go to, to reduce the risk of surgery. During the treatment, you need to do a good job of hand hygiene to prevent bacterial infections, and keep your diet as light as possible.