The gray nail, pay attention to:

1. Develop good hygiene habits, do not pull out the barbs, once the barbs appear to use scissors to cut, do not hard to pull out.

2. Trimming the nails should not be too short, to avoid the nail bed is easily exposed to damage, and cause infection.

3. Hot water soaking water temperature to 60 ℃ is appropriate. In order to avoid scalding

In addition to this you can also try hydrogen peroxide and patchouli:

After soaking your feet in hot water every day, use hydrogen peroxide to wipe the pus and bad feet to soak them and then put patchouli on the drops

These are the most important things you can do for your feet, but they are not the only things you can do for your feet.