im sold on the idea the cough is from some getting into your blood.
if it was a cns side, it would happen more often.
i was about to shoot 2.5ml fina in my quad. aspirated and saw blood. pulled out, moved 1/2 inch over and shot it all.
first a little fina came out of the other hole along w/ blood. i jumped in the shower, started coughing violently, had to sit down, a little lightheaded, but not like you get when you shoot into a vein.
what happened was i pierced a vein the first time, and since the pressure from all the oil was in the same area, some made it inside and into my blood.
thats the ONLY time ive ever coughed.
oh and ba is not the cause of it, thats riduclous. theres tons of other gear w/ loads of ba in it, and we never cough.
anyone use a premade tren? not homebrew. something made from tren powder like spectro. did that make you cough?