hip arthritis at age 24

I have been dealing with hip pain for the last 2 years. I first noticed it while doing karate. The pain was unbearable and I had to quit karate. The first doctor I went to thought I was exaggerating my pain because I was too young. The second doctor took an MRI, sent me to PT, and had me get a cortisone shot. The cortisone shot helped so much for a while. The doctor said to stay out of karate for a few weeks and to return when I felt better. I tried to return and the pain came back full force.

I hadn't gone back to the doctor since that second time, which was about 1.5-2 yrs ago. The pain would just flare up occasionally.

The pain has come back even worse. It's always been located in the groin area and buttock area. It is worse from prolonged sitting at work and school and from walking. I went to a new doctor who said I most likely have early arthritis. He told me to take advil and come back in a few weeks. The advil was killing my stomach so I switched to Aleve, which takes the edge off sometimes but other days it is excruciating. I use heat and ice as well. I'm not sure what else to do. I can't believe I have to live with this for the rest of my life...