Everyone responds differently to different compounds. Compounds like deca and tren are more likely to cause harder shut down. For shrinkage, you can try to up the HCG. Not sure how much you were taking before. I suggest 250u 2x wk. You could go to 500iu 2x wk. That said acne is often related to shifting hormones. HCG will increase the instability, as it creates ups and downs from the release of test when you use it. If you aren't on an EOD protocol with tren, that will help. If you are already doing EOD, you could push even further, using ED shots. Same weekly doses, just split into every day now. If these things don't help, you can go to your Dr and get an antibiotic like Doxy which will at least cure the side effect while you use it. It wont fix the root though.