Word of advice, as someone who's had lots, and I mean
lots, of injuries: past the initial cooling down of the injured part of your body, rest is not going to heal shit, most probably. Stretching and working out the area will. I've recovered from injuries some people would've had surgeries on, by taking this principle into practice. Look up isolation exercises if you can't seem to figure them out on your own, but
work that part of your body exhaustively.
Oh, and since the author of the blog post mentions "tennis elbow": I healed mine doing unilateral triceps extensions with a kettlebell. I naturally felt that it was the most straightforward and efficient exercise, just by messing around with the weights. It took around two weeks to heal completely, and I had it bad on both elbows (judo practice and pull-ups with bad form will do that, yeah).
Oh, and since the author of the blog post mentions "tennis elbow": I healed mine doing unilateral triceps extensions with a kettlebell. I naturally felt that it was the most straightforward and efficient exercise, just by messing around with the weights. It took around two weeks to heal completely, and I had it bad on both elbows (judo practice and pull-ups with bad form will do that, yeah).