I'm not a physio but this is what did, and didn't, work for me. Thirty-odd years ago (in my late 30s), my right-elbow pain (inside/golfers) became 'extreme' (it was even hard to drive a car etc). The probable cause was small-range-of-movement, very repetitive, training (the Brick-Edge traverse at SIDS wall, for those who remember it). Complete rest didn't help. Climbing didn't help (probably because one is liable to make uncontrolled, unexpectedly demanding movements) and took me very quickly back to Square One. Several physios (with the knowledge at that time) didn't help: 'frictions' and other massage on the elbow had no effect. Stretching didn't help. Exercises with therabands and wrist exercises with small weights etc didn't help. Surgery made no impact (apart from on my wallet!). Acupuncture: uncertain. However, after two and a half years, in desperation and having read some ideas from an American sports specialist, I tried self-massage and acupressure (not puncture!) along the full length of the forearm, particularly on 'sore' points (often in the area between muscle and bone, especially around 3 to 4 inches from the wrist) - the theory being that micro-tears and scar tissue had shorted the forearm muscles and so the elbow insertion point of the forearm flexors never had a chance to recover (even whilst resting or sleeping), being permanently under 'tension'. The concept was that 'softening up' the forearm muscles would give the elbow insertion point a chance to get some rest. After two weeks of this, I was able to start gentle, controlled (important!) arm exercises in the gym and built up over two more weeks. The problem resolved itself in four weeks total. Over the next thirty years, I then was able to improve my best redpoint grade by five or six grades without any serious recurrence. Crucially, I was able to spot immediately any hint of the problem returning... and repeat the above. In anticipation of any modern physios dissing my solution, all I can say to you is that 'it worked for me' (thank god, it was driving me insane at the time!). Good luck.