I have the same problem with my elbows and knees. My knees have been doing better with a whole lot of slow, long steching, but I've found it's is MUCH harder to find streches for your elbows, though I'm working on it. Streching is my number one advise, and, as you're doing, taking it easy. A quick fix while training is tiger balm, which, due to a common lack of knowledge, can usually be found with the chapsticks at your local drug store. A friend of mine also got a liquid balm from his accupunctorist for relatively cheap. You just apply a drop or two from an eye dropper and massage it into your skin over the sore/tight spot. It works well as a numbing agent. Like I said though, those are TEMPORARY fixes, and in the long run will probably just make it worse, as you'll still be using your joints however you are already and just making the real problem worse. I suggest finding a good orthoscopic doctor or physical therapist to help you identify the real problem and get it fixed (which from my personal experience is always: "don't use it for three weeks"). That might save you a Doctor's bill. Hope I helped!
Peace and Love