I recently had a plantar wart removed from the ball of my foot. It was removed by a dermatologist through burning. The same day I had It burned off, I had to play soccer on it and continued to for weeks. The would seemed to be healing well, although now it has seemed to stop. There is a hole there that is still unhealed. The hole is sensitive to touch. The hole is perfectly round, and appears that the wart has grown back. Is there a chance that skin is scar tissue? or is it most likely the wart has grown back?