Funny, Im probably the only guy to NOT recommend a doctor, and I have some of the most extensive damage bilateral acl/mcl replacement & retorn acl/mcl on left.If its torn its torn. Only surgery can fix it. Paying money because you have no insurance to have a doctor tell you that it can only be fixed with surgery, which is more money then you could afford likely without insurance....is silly.Having him tell you 'its fine work it through' ...well...thats also silly. Waste of money.So here's what I recommend: Exactly the therapy above, and the 'sends a electric shock' device only causes the muscles to tighten, stop, tighten, stop, etc ... Its a auto-muscle building tool. Its not essential to the physical therapy.But excercise is good...plenty of guides on the internet, just google physical therapy for the knee. They recommend different excercises for different stages of progress. if it hurts real bad your not going to be doing lunges, but you'll be doing step ups.If it buckles out then its torn. If you 'jammed' it, its likely not torn. Its just that the knee is a large piece. There can be a large amount of internal inflammation for ....months....thats simply reaggrivated every day. Swelling = pain