Suggest Treatment Inward Denting On Thigh Muscle After An Injury

I fell over a sharp corner right on the edge and dented inward my theigh musle back in December - it's somewhat better but still indented and looks funny - no pain but just a hard spot under the skin under where the indention is - what can i do to get the dent to go away and look normal again? Ops - Im 44 years old, weight is about 135 lbs and I'm 5ft. 5 inches. general good health otherwise