Help me find an old movie where the skin peels off.

I only remember one scene, and AI hasn’t been able to identify it (it’s not the movie “Demons” 1985, the visuals were much more modern). The film was released around 2006 or earlier. In the scene, two girls are chatting in a room at their house in the evening (it had the look of *Scary Movie* a typical American-style setting, and I’m sure one of them was blonde). One of the girls starts scratching her cheek. The other asks, “What’s wrong with your cheek?” She keeps scratching until the skin is torn open, and then blisters, like burn blisters, start forming and popping. That’s all I can remember.