I have suffered mild cases of trochanteric bursitis off and on for years. The trochanter is on the outside of your hip. If you are feeling pain down in the joint, I question your doctor's diagnoses.

I am just getting over a six month period where my bursitis was getting worse and more persistent than in the past. My regular doc wasn't much help, only offering to inject the area with something to numb it. Seeking relief, I went to see a bike fitter (I am a cyclist). Right away the fitter noticed that my ITB and hamstrings are really tight. His advice was to start stretching my ITB and to use a foam roller on it.

So I got one of these:

foam roller

With the stretching, using the roller and a little rest over the holidays my bursitis is gone. It didn't happen overnight but slowly over a couple of months.