Sore tongue and burning
So there are a few things I've discovered. First certain toothpaste makes a weird reaction with the film's. Using sensodyn proenamel seems to fix this. Second cutting the film's also helps the burning under the tongue. Third some people develop thrush. Eating yogurt with live cultures will help with that aspect. I still have severe pain while taking my films bug hopefully changing toothpaste and no longer cutting the film's will correct this.