Many reasons: Mouth-breathing due to nasal obstruction is the most common. Licking your lips only worsen the chapping. Also pay attention to toothpaste, mouthwash, lipstick since they may be the cause for the chapping as well. To start, make sure your nose is not obstructed most of the time. And nasal steroid didn't help, see your doctor or an allergist.
Answered 5/15/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
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