Red patches of skin next to mouth

I have one darkish red patch of skin under each corner of my mouth. It doesn't itch nor is it dry. I wouldn't even notice it if I didn't look closely at a mirror. It makes me look like I'm permanently frowning at a distance. What is it? http://i1223.photobucket.com/albums/dd512/apocalypse111/SKINPHOTO.jpg... click here to continue

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