hmmmm,im not so sure that is ring worm either,but it is a bit hard trying to tell by a picture,but when my charlie had ring worms about 6 months ago she had like fur missing,they lose their fur in patches,and charlies skin was dry and flakey as well.
Dr Tucker took a scraping from her infected area but found no parasites,he did look through this thing that makes the ringworm glow,and boy she had a few glowing spots,so it was confirmed charlie had ring worms.it seemed like ages for it to clear up.I was not sure how she got it,but the vet said they can get it just by playing in the dirt.
do you have any other animals in the house,if so maybe they passed it on,but be careful if it is ringworms its highly contagious,you can catch it.
but for some reason that does not look like ringworms,charlies skin looked completely different to your miffy hmmmmmm...it could be some kind of other skin condition.
do let us know if you find anything out about little miffy.
cheryl...