I believe in ice therapy. Ice reduces pain and swelling, prevents inflammation after a fall, and might cancel the need to go to the ER. I sometimes apply ice even when logic tells me warmth will be more effective. Logic tells one thing, experience tells another. In certain cases it's possible to have both, alternate cold and warm for the best result.
Of course, one has to be patient and careful about applying ice, in order to avoid frostbite (caused by ice applied directly on the skin), allergies, or worsen existing pain. Icing session between intervals, should be limited to 10- 20 minutes to avoid tissue damage.
I keep several cold gel packs in the freezer, and that serves me well. I've seen on Amazon site ,though, some devices for knee and shoulder ice therapy, that might be worth buying, just in case.
My first major use of ice occured several years ago after I fell on my arm, on the pavement. and got my right shoulder badly hurt. I decided not to lose time by going to get medical help, but reach home, and start immediately applying ice to reduce the throbbing pain and prevent inflammation.
I went to the doctor two weeks after the fall, pain free and able to use my right arm, though with some degree of restriction. The ultrasound revealed only a tiny fissure for which I was prescribed physiotherapy for four weeks, twice a week.
Back to the title of the post - two wise little words indicating at-home treatment for injuries:
RICE = rest, ice, compression, elevation ; PRICE = protection, rest, ice, compression, elevation.