One of the problems with using your BioPack in the barn and around any open wounds is that the glass on the cluster heads can get filthy. We started covering the cluster heads with saran wrap held on by a rubber band. We throw it away after treating the infected horse. This has the added benefit of preventing transfer of any nasty stuff between horses.
Kay Aubrey-Chimene, RMT
BioNutritional Consultant
Grand Adventure Ranch
Equine Wellness Center
http://www.grandadventuresranch.com