Pain and stiffness in ankel. What to do?

I met with an accident on 3/01/2020.my left leg from ankel to below knee got so pressed out by my scooty due to external pressure of trucks break . After five days got to know cellulitis has took place in my foot . On the same area there was a black patch which created water bubble like texture . So it was being dressed regularly along with cellulitis treatment . Cellulitis was cured but that bubble area had a patch in center . So it was dressed every day . Through MRI scan got to know some fluids have come out nd entered into muscle . Later the black patch turned into heavy puss from inside. So that infection was removed surgically, along with that fluid were also removed. Now the wound has closed but paining internally like earlier .so got ESR and CRP test done yesterday now infection level is 24 . It's been a month I'm not using any medicine.what to do ?