Ruti, i don’t know what your back ground is? but this is not a “tricky subject”, try this approach. You must down regulate the ANS first, many times just doing that will fix the problem. second, try stretching the Piriformis muscle on the good side ONLY, you will be amazed what this will do the the inflamed side! You may also want to check restriction of the trunk and correct it by working on the good side ONLY, and do the same with shoulder flexion. Finally Ruti, one of the Neurologist/Traumatologist that i work with published a study of 43 individuals who suffer from “piriformis syndrome” and 100% of them were sexually assaulted, something you may want to keep in mind. Hope it helps.