I've got a fussy eater like that. It's a struggle sometimes for sure, but good on you for being vigilant! Those are fairly minor nips.
My guy is pretty good about striking, but sometimes just to be sure, I reach in with feeding tongs and put them between the rat and snake or push the head away slightly just in case the teeth are too close.
I agree. clean it up sooner than later.
Also, along with any swelling from abscesses, keep an eye out for secondary infections symptoms like wheezing, red spots on the belly or lethargy. It's not a deep bite, but you never know if they will pick up an infection or not