1, there is some black skin on the toe joint, which is very oxygen. Digging hard will peel off the skin, and there is still a little water. After a while, new skin grows out. How to treat it?
You should also see a doctor. This should be caused by fungi. It doesn't mean that you will be completely cured after applying the medicine. Because the fungus is tenacious, you will be fine if you apply it to your feet, but there are other places where this fungus will recur once it touches your feet again, very thoroughly. It is recommended to change toiletries, including not using the bathtub, and to change everything that often touches the feet, such as foot towels and socks.