
Just wondering, do you add water to her food? I found that when my bitch had very young puppies, her mouth was sore from all the licking. She had some sores on her lower lip, so I added more water than normal to soften the food.
I also added minced raw green tripe, the smell is VERY attractive to dogs... and it didn't upset her stomach at all. You can buy it in frozen blocks at the pet shop. I'd only try a small amount to begin with just in case...
Other than that, try a gruel with 2 cups oats, 2 cups water, 1 tbsp complan (plain), 1 tbsp glucose powder, 1 egg, 2 tbsp honey and 1 cup goats milk. Cook in a saucepan, add honey after and cool with goats milk. My bitch would get it down her neck quick as lightening even when she didn't want to eat anything else...
Good luck, I'm sure she'll be eating fine soon.