I had the pain for around a month with no improvement before i started general core stabilising exercises which then improved around 2 weeks later. I was doing transabs activation with legextensions, bridging w alternate leg extensions on a swiss ball, side plank w feet on a foam roller etc.. Generally targetted TA, Glute max, glute med. I found once my core control improved the pain disappeared (literally in one session had disappeared). Alot of the exercises i was doing can be found here:

Core stability exercises

But at the same time I was recieving treatment and did communicate everything I was doing with the person treating me which I recommend you also do as every injury is unique, what worked for me may not work for you. Hope this helps.