Additonal supplements for a lagging cria

I have a 6 1/2 week old cria who seems to be lagging a bit behind the others I have had on the farm. All in all, we've been blessed to not have any problems with crias but there's always a first time. She did have a temp. a week ago and has gotten past that with some antibiotics, yogurt and pedialyte. She's back nursing like a champ. Just wanted to know if there's anything else I can do to help her along or just let the llama be a llama.