my friend whom i have spoken about on here before who is on trt at 400mg every 2 weeks (yeh ive told him) gave himself a shot wednesday in the quad and now its hurting him like hell at the injection site.. that was his 6th time giving himself a shot.. he alternates legs every shot.. it is sore to the touch and hurts to walk.. theres no redness and no discharge it just hurts alot.. can anyone give some insight as to why this is??? thx