I had tendinitis in my wrist, elbow and shoulder from playing racquetball competitively. I tried all the anti-inflams and ice, but was not able to sleep because of the pain. My Doc told me I had to stop playing which I did and it fixed the problem within a year.
I recently had a flare up in my elbow which I fixed by using grip and reverse grip (bands) strengthening exercises with anti-infams. This flare up was caused by maximum dry fire drill.