Dermatitis is an itchy, ugly rash you get when you're allergic to things like additives in skin lotions or detergents. It can be frustrating and confusing trying to figure out what's safe to put on your skin, since product labels are hard to decipher. Now, there's an app for that! A Mayo Clinic physician has developed a free smart phone app to make it easier. Vivien Williams has more. [TRT 1:50]
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