tennis elbow

This may be a very dumb question... Been doing TRT for about 9 months and am very happy with the improvements. Just wondering, will injecting cypionate into the forearm instead of the normal glute / thigh area have any positive or negative impact on chronic tennis elbow / tendonosis pain?

I have really bad tennis elbow from lifting weights. Been stretching and apply heat to help heal it but arm is still garbage. Lifting sucks since I can't do much...all gripping causes it to flare up. I was thinking about trying a peptide GH or anything at this point to try and heal it up...