Unfortunately I don't know the specifics of price ranges or exact meds.

However a couple of our vets tend to use a Woods light to diagnose ringworm with, dunno if that's any cheaper than the fungal culture though. The idea is that ringworm will 'floresc' back under the light. I think it's supposed to be like 80% accurate.

I wish I could remember for sure, but one vet uses these wipe pads to wipe the affected areas with as opposed to the whole bath thing. For some reason I'm thinking of the Maleseb Plegets, but I could be wrong on that one.

I think that one used to also use some kind of pill called something like fulvicin(sp?) that was supposed to heal the new skin as it grew out.

We don't see a whole lot of ringworm cases, particularly in cats, so I'm not as familiar with the whole procedure involved. I'm more familiar with what ringworm is rather than the treatment for it. Sorry I'm not more help to you.