One week in and the cortisone had no impact on my groin. According to the doctor, the lack of response from the groin likely rules out the labrum tear as the reason for my pain. Apparently, people have minor tears all the time and they are not necessarily the root cause of the pain. He thinks that it is actually the hip flexor causing the pain. Rather than surgery which would have been the prescribed approach, he suggested 6 weeks of PT on the hip flexor. News is kind of good because it means no surgery, kind of bad because I am skeptical of PT, I just dont think it works well, kind of a sham.