I've had tren cough a few times, and it does suck! One of the worst coughs I can remember, and it feels like forever before it stops, though in reality it never lasted more than 4-5 minutes for me. The fact that this happens to me maybe once every other cycle of tren, against the gains I get on tren... tren wins every time. The cough sucks, but suck it up, the tren is worth it
You clearly do not have a good working knowlegde of how to administer injectable steroids. I suggest you do some more research. Especially on how to properly inject.
Check back with us after doing your research and we can go over injection techniques.