I Fell 8 Days Ago On My Knee. Used Ice

I fell 8 days ago on my knee. Used ice and compresin x 2 days. After huge swelling went down, still a puffy ball on knee...xrays show no breaks, all ligaments seem to be intact. Dr says I have a huge blood clot between knee cap and skin. Apply heat 2 x daily for 30 minutes. My knee hurts bad, now shin hurts to touch and inside ankle and foot are looking bruised. Nothing hurts constant except knee. Is this correct?? Dissolve blood clot with heating pad?