Few weeks back, I bought a fit size shoes. As I kept walking, something irked on the right toe. Later I have observed that half of the nail turned to white-reddish or white-black color. I understood that there's a blood clot and phus formed inside the nail of right toe. Upon pressing it the blood & phus both come out together. I can't apply any cream as it's clotted inside the nail. What to do and how can I get rid to this problem?