Steve,
Sorry to hear you are dealing with this. I developed a serious case of this in June of this past year, also in my drawing arm. It got pretty serious throughout the summer season, even to the point were pouring a glass of water was terribly painful. Pain was in the forearm and elbow. I used pain killers, braces, ice, and anything else I could find info on. None of those cured it-ice did help but absolutely the best thing that finally helped was REST! I love shooting my bow but realized that I had to decrease my shooting or stop completely or it would only persist. One thing though that I do not do anymore, or try not to anyways, is to shoot more than one arrow at a time. Since dealing with this, I now shoot only one arrow at a time then go and retrieve that arrow. I actually think that that is how I developed it, shooting several arrows at a time and over doing it. It is terrible to deal with and is with you all day long. It took probably two months for me to heal, I'm 99% cured but still feel slight pain from time to time. I did shoot some within that two months, but I'd go for 5 maybe 6 days of not pulling my bow back at all. When I did shoot, they were short sessions. That helped more than anything. Good luck and stay positive.