After applying Hartz UltraGuard plus drops to my cat’s neck, she lost all of the fur under her collar and now has a ring of red, irritated and itchy skin around her neck. The vet says that chances are the fur will not grow back because the chemicals damage the hair follicals. Four days later, she doesn’t seem to be in pain or have any other side effects.
If Hartz considers this an improvment over their previous products, they are dillusional. What sort of sick people are allowing this to continue?