Tongue sticking out of mouth

[Wizzlewuzzle]

Just got back from the vet. They said that Packy has a bacterial infection on his tongue, and they gave him some antibiotics. They said hopefully his appetite would be back in 48 hours but that I could try force feeding him in the meantime. Edit: I put half a baby nightcrawler in his mouth, and he ate it! It feels good for him to finally eat something, even if I had to put it in his mouth for him. Should I let it go at that for now? Is half a baby nightcrawler sufficient or should he eat more? He is 2 1/2 inches long (I measured and it turns out that my "guesstimate" was a good one) and as you can see in the pictures earlier in this thread, underweight. The vet seemed kind of vague/unsure about how much he should be eating.