Is this scale rot? Skin infection?

[bcr229]

STOP NOW

This should only be done when warranted and this is not, whatever it is and scale rot shows as brownish scales simply keep your BP clean and dry, make sure the substrate is not damp. White BP will show every single scale scrape and defect.

By applying antibiotic twice a day what you are gonna do is loosen up the scales which will fall off, while antibiotic ointment is great in some instances it has to be used with caution and moderation since it is oil based.

This is an excellent point. Petroleum-based ointment products cause scales to slough off over time. A better topical antiseptic/antimicrobial product for reptiles is a product like Vetericyn, which is a water-based gel that is also safe for use around the animal's eyes and mouth.