I am breeding my former PMU Percheron mare next month to a Gypsy Vanner. I've had her for 2 years and in that time she has always reacted to her shots with sterile abcesses. It doesn't matter what brand it is, what type of vaccination it is, or the location where it is given. Some are small and some are HUGE! The smaller ones resolve on their own within 4-6 weeks. The latest one (rabies given in her chest muscles) took 8 weeks to begin to resolve and stood out from her chest a good 3". I am thinking ahead to the shots that she will need to pass immunity on to her foal. Has anyone encountered these types of abcesses? What have you done to prevent them or hasten their healing?
That is a bit strange, and certainly not the norm. Any time you puncture the skin line, there is always an opportunity for an infection. With a horse like yours that has a history of injection site reactions/abscess...this is what I would do: 1. clip the area where you intend to vaccinate 2. do a surgical scrub with chlorhexidine scrub, chlorhexidine solution, and then alcohol. 3. wipe the vaccination vial with alcohol, and use only a sterile encased syringe/needle to draw it from. 4. Change needles, using a new needle when administering the vaccination. 5. Wear gloves
At least, this will reduce the opportunity to draw bacteria into the injection site.
Thanks, Heather. We have been doing those things, to no avail. Thay are not abcesses from any type of bacteria, however. The vet explained that it is her body's reaction to the vaccination -s he is trying to fight off what was given and her body encapsulates the liquid and tries to fight it off. He has had horses that get them from their shots, but never to the extent that she has.
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