If the sores are not swollen, I'd keep treating them topically, & she should be fine to feed. Just like us, we might have a cut that's healing & it will be sore for a while,
but it doesn't sound like this is anything that would keep her from eating. And a good appetite is just what she needs to heal right.
Keep looking for how she managed to get this injury though. We'd offer suggestions but we're not seeing her set-up...;)
There have been situations where people used things to furnish a snake's home that weren't designed for that & had sharp edges inside because they were made for
aquariums, & fish don't push on things the way reptiles do.
