Help ASAP, my ball python got attacked by cats

[Bogertophis]

see, there are no videos out there on how to apply neosporin on reptiles. especially none for cat scratches.
I wish I knew more details about this. how often I should be treating him, how long he'll survive if he does get infected, what kinds of behavioral changes? etc. none of these can be answered without reaching out far.

I'd suggest applying it ONLY to the wounds themselves using a Q-tip, & only a little bit at a time. Neosporin is petroleum jelly (aka Vaseline) based, so it will stick to substrate & wipe off in cage, & it will also smear on your snake's nearby scales (causing more scale damage that turns into problematic future sheds)- Vetericyn is far better for snake use. Topical ointments can be reapplied as needed multiple times daily.

Keep in mind though that if your snake has puncture wounds from your cat's nails or teeth, the antiseptic ointment you apply won't really take care of the whole problem. See my post above- https://ball-pythons.net/forums/show...=1#post2754628

No one can tell you about his survival: just as humans have different abilities to withstand & fight off infections, so do snakes. Snakes are VERY stoic: they seldom seem sick until they're dying, so that's why we're recommending you get him proper vet care- being on an antibiotic for this might save his life.