HGH Cycle for Injuries?

I recently got my T up (4 months)from many years of being low. I have an old shoulder/rotator injury (5 years)that I never properly treated. Now my range of motion isn’t great because of pain compared to my other arm. I was thinking if running a gh cycle to see if it helps at all. Wanted to get 200 iu and try maybe 3-4iu a day. Is there any reason this would be a bad idea? What kind of potential does it have to improve things?