Two things about surgery that messes dogs up: Pain meds and antibiotics. The pain meds will stop them from eating and the ABs kill all the bacteria in their gut.
I would ask the vet for a probiotic/ digestive enzymes for her. Should make things right as rain in no time. Yogurt does not contain enough live cultures to reestablish the natural flora in the dog's gut, but you can use it to entice her to eat. Just watch out for any artificial sweetners... |