Well, you might WANT to take them to the vet. Remember...you can get ringworm from your pet. Many years ago, I purcased the CUTEST little Himalayan kitten from a pet store for $1000....I couldn't help it...she was SOO tiny.
Well, she had ringworm. She gave it to me and my dog (who had an allergy to the fungus. Her skin actually came off in chunks where the fungus had embedded itself. It was HORRIBLE to look at.)
Anyway, they shaved my poor little kitten, and my dog so we could see all the spots. Then, they gave me a cream to put on all their "spots". I am assuming it was doggie Lotrimin.
The people cream might be a little harsh for your pet, but the fungus is certainly the same, so if you cannot get to a vet this weekend, you might want to give it a try.
Good luck!!
Beca