whats the fastest way to get rid of ring worms on animals ?

already took them all to the vet, its ring worms, i bought this dip that smells really badly but first it was just the kitten that had it, then when i came home it was one of my 5month old puppies, the next day it was my 4yr old dog, the next day it was my 1yr old dog, and today it is now my other 5month old puppy, so need to know whats the fastest way to get rid of it, i am putting this different medicine on them that i used on my pitbull when she was a puppy it work great, reason i don't want to use it, cause my animals are indoors and the medicine stains everything purple, cause that's the way it is,

so anyone out there deal with a ring worm outbreak in there animals, please let me know what medicine is the fastest way to get rid of them, gonna wash all my sheets and dog bed tomorrow, and the kitten seems to be fine, the doctor could barely tell that he had it cause i had already used the purple medicine on the kitten, im using it on the dogs as well, but they seem to be getting them everywhere else on there bodies now, so need some help asap