I_Heart_Tito, What a shame to hear how this vet handled the entire situation of your little one. Maybe it's time to search for a new vet that can give a bit more attention to the needs of you and your Tito.
Id be furious also and completely understand your frustration.
I apologize as I don't have any info regarding ringworm etc....
I do hope your Tito feels better soon.
Yorkie_Girl, I am sorry you had to go through this too. How unfortunate that Yorkie's suffer due to mistakes by some vets along with possible other pets too.