Yeah, well I'm not saying it is scale rot I'm just saying it sounds like it. Also, it's possible that the bacteria infected the snake before you got it and so the cause may not be your husbandry or the enclosure. Once the infection gets a foothold, correcting the damp or dirty conditions isn't enough. You need to kill the infection on the snake too. And, sanitize the enclosure often, until you are sure it's gone. The affected scales may or may not return to their original state. Likely some scarring or disfigured scales will remain but they should improve and not spread.

If it is scale rot, it doesn't look serious at this point. Catch it early, treat it, and the prognosis is good.