Steroids are not the answer to fixxing an injury.... Actually.... I would say it is worse... On previous cycles I have had some minor injuries and it has actually made things worse... If you have say a shoulder injury... And all of a sudden start doing a cycle... Your weight in the gym will increase. Therefor more weight.. Therefor more stress on that body part and joint. Only hurting your progression.

What type of injury is it? Personally w.e it is if nothing to serious... I would take a step back from really pushing that body part. And just take it easy for a few weeks. Only time will heal it.

And at your age... I would definitely wait.