tendinitis in the Achilles tendon help!?

I've been struggling with an Achilles tendinitis for several months, almost i can not run what is evil from it to run as a division of a university. None of the coaches know what to do about it, even the doctor puzzled. I tried medicine rehabilitation, a new treatment called the Graston, and the last step is a cortisone shot, but if you receive an injection, which could increase my chances complete tendon rupture. there must be something I can do, the pain is directly behind my heel hurts to stretch running jump or even stop pushing. I'm not bursitis sure if it (not sure of the spelling) or what. Other ideas to cut your leg? All answers are greatly appreciated.

I just got more of the same. I've had it 6 months. I went to a doctor recommended a friend. I told him I saw an article about cortisone injections, and how you can blow your Achilles tendon. Cortisone is injected on each side, not directly on the heel. Rested for 4 days and it took about a week for the pain disappears, and after 3 weeks I am without pain. Do not wait. Just do it!