Nail fungus is also very common. Nail fungus usually occurs with a history of trauma and is treated as follows: 1) caused by bacterial infection: with anti-bacterial drugs; 2) caused by fungal infection: with anti-fungal drugs. To prevent the recurrence of nail infections, you need to treat the nail thoroughly, and there is little chance of recurrence after the treatment is complete. In addition, you need to prevent the nail groove from being re-injured. Some people may have nails that tend to grow in the flesh, causing them to pierce the nail circumference, and then bacterial and fungal infections can cause nail infection, and all of the above need to be avoided.