have to agree that it sounds like scale rot. One of mine has recently gotten over it and I'm in the middle of a bad case with one of my other ones. Generally, they need antibiotics, so go to a vet when you can. I switched to paper towels as bedding and that REALLY helps. Also, if you can get your hands on some betadine and give her some water+betadine baths, that is really helpful. Both the antibiotics and betadine should be available at the vet. good luckand don't worry too much; it's not the worst thing possible!
ps-- i'm pretty sure it's normally caused by some sort of bacteria collecting underneath the scales. one of my snakes got it because my substrate was too damp for a long period of time and bacteria was collecting in it. this second one though, i'm not quite sure what did it. i have a feeling it was something from the breeder i just got her from recently and is just now manifesting, because i was SUPER clean/cautious with both my new ones and only one got it. oh well.
pps-- make sure your neosporin doesn't have pain killers in it.