If it is the gear youre Iming causing infections , you could try sub q ing it and see how it pans out, expirementing.
I dont know if Im allowed to disclose the companies that gave me the worst infections, (gh that was cloudy and gave welts as well) but high dosed 500/600 mgd per ml hurt the most and literaly was just about handicapped over christmas. This is no jke , serious , and your body is fighting these infections, wearing you down, so if you do get another infection , it wont fight it as good.
I dislike wasting $ too so Ive tried sub q ing the stuff thats given me some issues (one shot its been fine, next shot three, four days later, infected, have to fricton massage the knot out) so its or or miss. Other gear its every effing time , even at 0.10 mls intra muscular. Then , an idea is to try sub qing this, if $ is concern.
Been on trt (and cycles) for twelve years now, and even pfizer pharm test cyp gave me welps sub qed. Been sub qing since 2017, in between cycles (dont anymore really , prefer to do im) and the welts eventually would go away . Do I think think gear was bad at the time? No , never had a reason too. If youre currently feeling run down and ill, and of course labs show possible infection, then for sure trash it, even if the money spent on it, vanishes.