My husband received Botox injections to relax a large muscle in the shoulder. It was causing dystonia and was pulling him to the right side (which was also his Parkinsons side). The Botox relaxed the muscle and he continued these injections for 2 years before he decided to stop them. The downside was that it caused the muscle to become very weak, and he decided that was causing as much trouble as the dystonia. He started a weight program to build up those muscles that had deteriorated, and he had good results from the exercises. (as a side note: His insurance paid for these injections ($1200-1600 for each. Make sure your doctor codes the insurance as a medical procedure; sometimes the botox invoice is rejected because it is coded as a cosmetic procedure.)