I had inner elbow pain for years. Bothered me most on chins and pull-ups, but curls and rows hurt too, as did back squats and unracking/re-racking bench presses. I tried everything I could think of, including complete rest for three months, voodoo flossing, eccentric exercises and various other things, and nothing really worked. Eventually I ordered a device called an Armaid and gave that a go (it allows you to massage your forearams very firmly). I started off using it every day for five to ten minutes and it didn’t seem to help. A few months ago, in a moment of extreme frustration, I sat down and used it for 20 minues on each arm, and carried on doing the same every day. The pain was gone in a few days. I have to stay on top of it- I can feel the muscles attaching to the medial epicdonyle tightening after an upper body workout- but I haven’t had problems since.
While I was having problems, I found that squatting with a safety squat bar and benching with a Swiss bar helped. I also used a pair of those ab slings to do hands-free chins and inverted rows (I think there’s an article by Ben Bruno on here somewhere with a video). This enabled me to get some back work in (my chins atually improved when I went back to doing them!)
Hope this helps.