Welcome to BPNet and thank you for rescuing that snake. It sounds like you intend to give it a good and responsible home. I like others here will advise you to see an experienced herp vet. Have a culture done so they can prescribe the correct meds if an RI is present and a fecal float wouldn't hurt either. Just gather up her/his next poop, pop it in a ziploc baggie and drop it off to the vet (if you phone ahead most will take fecal samples anytime). Best to know if you are also dealing with any internal parasite load. Also a proper sexing so you know for sure what gender you have.

We have a great BP caresheet here if you need any basic information on setting the snake's enclosure up. Glad to hear it is eating. Remember to not feed it right before a vet visit though.