Thrush?

Maryann
My daughter got thrush about 16 days ago. I took her in the same day It started and the gave my nystatin for it. I boiled everything bottles, binkies, even bought new ones. It won't seem to go away. She has 4 days left on the nystatin. The thrush is only left on the upper inside lip. Any ideas or tricks to get it to go away?