I realise that this is an old post but just wanted to add to it for anyone who comes across it. I also get a bad skin reaction to tren. I have it right now and have dropped the tren from my cycle after 2 weeks as its driving me mental. Last time i had it it was horrendous and left me writhing round with the itchiest back ever. It was like being stabbed with a needle. Only benadryl tablets cured it and i was so glad I stumbled across them. Tren itch is a total b!tch. Right now my reaction is less severe but I am getting red raised itchy patches. Enough to tell me to knock it on the head. As good as tren is there is just something about it that my body doesnt agree with. No more tren for me.