I was hoping someone could settle an argument I'm having with a friend. I'm in marching band and thus after spending gameday on friday and competition day on saturday playing outside, my lips are thoroughly chapped. I use medicated Blistex. This has always been the best for me and I have never suffored any kind of reprecution. My friend tells me that the medicated lip ointment breaks down muscles in your lips and will actually be detrimental to playing. Can anyone settle this argument for us.