What is the reason for pus formation in the wound in my leg?

Hi,

Welcome to icliniq.com.

I have thoroughly gone through your case and can well understand your genuine health concerns. As you have developed pus inside your leg that means your leg is severely infected. In my opinion, you need surgical intervention in the form of incision and drainage of the wound. So, I suggest you consult a surgeon as early as possible so as to avoid the spread of infection throughout the body, otherwise, the infection will spread through blood and can cause septicemia which is dangerous. You also need intravenous antibiotics. Please check your blood sugar so as to make sure that you do not have diabetes.