★★★★★
I've had bursitis in my hip (occasionally knee or shoulder) since I was 11 or 12. The one thing I've seen really help is a vitamin supplement. I get a sustained release Super B and take it daily as long as I do, I have no problems with the bursitis. If I run out or forget it for a few days, pain starts. Also, if I increase my activity level significantly, I need to increase the Super B for a few days.
Let me know if this helps. It's worked well for me for 50+ years.