Possible Scale Rot?

Snake newbie here, bought a lovely female yellow Belly for the kids (and me of course!). Only had her for a month, she had a really bad bitty shed which i had to mitigate with a soak and some manual removal. I had noticed her in the water bowl alot and long story short she has mites which I'm treating her for. Then today I noticed a funny looking scale, see picture (bit confused about how to get an image up so tried URL and link, any advice if I've got it wrong?). Is this scale rot and if so is it straight to the vets or is there a treatment I can apply myself? Oh and she also has a retained eye cap, learning a lot in my first month of snake ownership!

Her set up is what I got her in, a RUB, newspaper substrate, heat mat under rub. Regularly change if she poos/wees and always complete change and disenfect whole RUB once a week when I feed her. Not humid in there (something I have to change because room ambient temperature too cold so looking at some local electric heater in the area where she is) so she's not swimming about in wet.

https://ball-pythons.net/forums/cach...p_zNt94ejfSoBQhttps://drive.google.com/open?id=1Jb...p_zNt94ejfSoBQ

I've seen this in other posts before. I haven't had an experience with this. But it might come off with the next shed

Thanks for the reply, I looked at it again yesterday and it seemed less red. I'm going to keep an eye on it rather than rush to the vets, other than the mites (which have definitely been killed by the Callington, also doing it again in 7 days to make sure) and eye cap she seems healthy. Strike feeds gerbils every week without fail and when handled shows no nervousness or pain.

If anyone else can remember specifics would be appreciated.