I thought hairballs are generally a cat thing. My long-haired, double-coated Chow mix is shedding right now. She has always eaten very little for her size, but recently seems like she's been hungry all the time. I figured she could use a worming since it's been about a year. Tonight I gave her dewormer with some hamburger grease (to hide the meds in) and a meal of chicken gizzards since it said dose with food. Shortly afterwards she threw up what looked like a big HAIRBALL, one of the chicken gizzards, and the usual frothy stomach liquid. Should I be concerned about the hairball? She does "groom" herself a lot. Anything I can do to prevent it? I know they give cats a greasy "hairball remedy" gel paste so I assume the hamburger grease might have helped the hairball come up?? Or am I wrong about that?