How to get rid of the imprint on the heel?

Hello, my boyfriend plays football professionally, for a few days an imprint began to appear on the foot, at first it looked like an ordinary imprint, the matter of days became a very large hematoma under the layer of hard skin. In the pharmacy we got ointment for corns and pains associated with them. He had been lubricating the place regularly for over a week but nothing helped. Due to daily workouts, there is not even time to completely heal the imprint or visit the doctor, please help what can we buy or do? Thanks in advance