As noted above, you may already have a worse problem than you know about. Depending on if and exactly what kind of short develops between which windings and under what conditions, you could blow the controller up applying throttle, or engaging regen, or just suddenly shorting two phases together while riding at high speed and finding yourself laying on the road from the unexpected braking that will give you (assuming a DD hubmotor).
However, if you don't mind spending money and time on a possibly futile "fix", you can get a can of clear CoronaDope and soak it into all of the windings, then let it cure (this will take a while, so plan on not using the motor for at least a few days or longer, and do all the work on it *outside*, and leave it out there for the curing).
If nothing else, the CoronaDope will harden on all the windings that it can get into, and on the stator laminations, and prevent them from moving relative to each other, so if there are any completely burned off areas, then even if it hasn't coated them, it may prevent any shorts simply by preventing relative motion between them.
It might not prevent problems...but there is a small chance it will.
I use the clear stuff (MG Chemicals 4226 Super Corona Dope) so I can still see everything under it after a repair, but they make it in black, etc., too. It'll cost around $15-$25 for the small 55ml bottle (which is probably enough to do a whole motor), and up to a hundred dollars or more for the liter bottle if you need that much.
If you have one of the cheap "1000w" motor wheel kits it'll probably be a better deal to go buy another one and swap stators (or whole motor wheels) between the damaged one and the new one, then save the damaged one for parts or emergencies.
