I have not man but I've dealt with shoulder issues. I can tell you that steroids will make it worse. Not only are they inflammatory but also they'll help you push harder in the gym, which will cause the injury to be more chronic. You don't want to end up with problems again. It's something that...
His levels being under 100 ng per deciliter is super low. He should definitely talk to a doctor about getting on TRT if he has good insurance; otherwise self TRT would be something that would be desirable