Try my routine bro...
1) Roughly 20 minutes before you train rub some tiger balm on the area and surrounding tissue with a latex glove so your hands don't stink although your elbow will but who cares you are trying to rehab not pick up biatches at this point.
2) Invest in some elbow compression sleeves and put them on about 10 minutes before you train on your way to the gym.
3) If you have a hand bike at your gym try warming up on it for about 5 minutes at a slow pace if not try an eliptical that you can use your arms and legs with for a decent warm-up.
4) Pick whatever exercise you can do without pain and do 2-3 warm up sets of about 20 to put some nice blood flow to the area, for me it's cable push downs without going to full lock out (no lock out is key).
5) When you get home try some advil (I know it almost killed Tom Prince and Flex Wheeler
) along with some ice for 20 minutes.
It may sound like alot but every year that I put on weight for the winter and then come down my joints ache and this works everytime! Good luck bro...
P.S: By the way, try taking a look at all of your upper body movements. My elbows actually hurt more when I do lat pull downs and later on in the week do tris vs not doing pull downs at all. Kinda makes me go hmmmm