I always give my goats the BarVac CD-T vaccine Sub-Q near the shoulder. And I've always had trouble with some of the goats getting abscesses from the vaccine. Probably like 50% of them form some sort of hard lump or a full-on abscess that needs to be drained and cleaned. I want to vaccinate my goats, but this is getting ridiculous. Not only is this happening to my does but it's happening to kids too... twice because you have to give two doses. so one lump on one side and another on the other side. I have to tell my customers that it's from the CD-T vaccine, that its not a CL lump (I'd be skeptical if I was buying a goat). I've tried giving it straight from the fridge, tried letting it sit out for awhile to get warmer, rubbing the site, using alcohol to prep the site, NOT using alcohol to prep the site. And I haven't found any distinguishing reason as to why this is happening. I'm thinking about switching brands. Any tips?