Suggest Treatment For Injury To My Quad

I recently injured my quad playing soccer. I couldnt bend my leg past a certain point without a great deal of physical pain and i had a knot the size of my fist also on the quad. I went to a doctor who told me i had torn my muscle and had a blood clot on top of it. He prescribed me ibuprofen 600mg and told me to strecth and refrain from playing sports. since then my leg feels as its gotten worse, it feels as if my knee is now a source of pain too. Could you tell me what i might should do?