Treatment for Side Effects of the Feline Rabies Vaccine

I swear by activated charcoal for removing toxins from my dogs and cats and also for infections and tooth problems also used it effectively for a poisonous snake or spider bite...Maybe it is worth a try for vaccination problems.I usually give the dogs one activated charcoal pill when the problem appears and one more 12 hours later...with the cats..one pill in a can of catfood usually works.