Is There Anything One Should Do About Injuring The Knee For Recovery Besides Icing And Compression?

May husband fell and hurt his knee It was x-rayed at a walk in clinic The dr there said nothing was broken or out of place He said it will improve slowly or it won t. If it doesn t improve in 2 weeks you need to see an orthopedic dr. We are I icing it and he has a compression wrap. Is there anything else he should do?