How do I get my cat to swallow her pill?

If she doesn't take her pills, my dad is going to give Skittles away. The vets gave us some contraption to force the pill into her mouth, but she just spits it back up. Also, we set it in her dry treats, but she either doesn't eat the treats altogether or she avoids the treats anywhere near the pill. Is there a way to giver her the pill successfully or a way to get her to open her mouth more so we can get it in there deeper so she won't spit it out?