Could you still continue medication of a newly-recovered puppy?

People often stop treatment when the animal looks or seems better but that's how people and animals die, continue with the treatment until you run out is what my vets have all told me, even if you're buying the vitamins yourself they do no harm, that's why they're vitamins, try not to force weight on her she'll gain it back as she needs it but I'd suggest giving her extra wet food if you're worried about the weight that much, or if you don't feed her wet, get a couple of cans and put her on those, make sure to get wet puppy food though, not adult.