Some poms are extremely picky. If she is extremely underwight, take her to a vet. They will probably suggest some puppy food to help fatten her up. I have 1 picky pom and 1 pom that eats whatever is in front of her. For the picky pom I mash the kibble (I put it in a plastic bag and mash with a hammer) and then I pour it in to his bowl, add a bit of water so it is soft. Then I had something like a little cottage cheee, or little pieces of cut up cheddar cheese. I do NOT do this all the time...but if she aint eating, give her what she wants until she starts eating! My poms are both rescue dogs too.