Patch Protection: Lesions about the mouth are often due to chapping, chaffing or fissures (cracks). Viral infections like cold sores (herpes labialis) can leave a residual dry patch during the resolution phase. In many cases using a barrier medication works as it seals the overlying skin to prevent further moisture loss and softens the tissue so it doesn't pull or tear with stretching. Most plain lip balms work.
Answered 8/1/2016
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