While recovering from a Fx of the neck of my left femur, I had some pain around this bursa.

It was scar tissue, adhesions, and some ITB problems.
To get relief, the remedy is lots of ice, some simple yoga, and rolling out the TFL & ITB with a cylinder.

The scar tissue will break up faster by rolling out these structures. I used a 2.5" diameter vitamin bottle to roll while standing up.