Well, here is a post that this newbie can actually answer! My wife is a sports therapist so alot of this comes from her. I have had problems with my right elbow for years and never really listened to her advice (stupid me) until about 1 year ago. DO NOT GET A CORT. SHOT. They are nothing but a mask for the pain. There are only 3 things to get rid of/help with tendi.
1) REST REST REST. Use alternating cold and heat packs for 20 minutes each 2 times a day ideally to help reduce inflamation and promote blood flow to that area with the heat to encourage repair and healing. I know you hate to hear that but how would you feel if you had been up for 48 hours and someone kept making you go and go and go when all you needed was rest?
2) Advil, Advil, Advil. No more than 800 milligrams in a 24 hour period.
3) Get a tennis elbow brace. It's the one that has the little air cast of sorts in it. Wear this 24-7 ESPECIALLY when you work out for about 2-3 weeks and your pain most likely will be gone. To find the best spot to wear it start wiggling your fingers around and press in the area that hurts. You will notice that it will stop hurting to move your hand and grab things when you press in one certtain spot. This is the spot to put the pressure from the brace on.
These braces never seemed like much sense to me until it was explained like this. "The tendon is like a rubber band. Imagine holding a rubber band in your right hand with your thumb and index finger. You have 2 little loops on either side of your fingers. Then grab the left side and pull. You will notice the right loop of the rubber band doesn't move hardly at all. Now imagine this is your tendon. What a tennis elbow brace does is allow your tendon to still be partially used so your hand can function but allows the inflammed portion of it to get some much needed rest. "
I followed this advice and I rarely have any elbow problems. If I do, I hit this routine and it is back to 100% within 2-3 days at the most. If this doesn't work I can only assume you have another sort of problem or your tennis elbow is so progressed that you will have to see a dr for some more aggressive treatment (which you are already doing it seems) Just my 15 cents worth.