I suggest offering her canned cat food, tuna, or boiled chicken. If she doesn't take to any of these then you can pick up jarred baby food (meats) like lamb, chicken, beef, turkey. I would also pick up a syringe to force feed if she doesn't eat this on her own. It will take some time for her mouth to heal up enough for her to want to eat. I would call your vet and ask about a pain medication for a few days like metacam.
NO GARLIC OR ONION IN THE JARRED BABY FOODS. READ LABELS CAREFULLY.
If you need to force feed which should occur within 12 hours of her not eating then I suggest giving her 12 cc at a time of diluted baby food. Split this up by 3-4 hours. If the antibiotics are helping her mouth then she should start eating again on her own within 24-48 hours. If she does not then I suggest a blood profile to rule out kidney disease which in my opinion your vet should have done at the time she was at the vet since oral disease, drooling, and kidney disease are linked.
Please let me know if further assistance is needed.
Theresa
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