What could be the possible causes of chronic nasal congestion and dry lips? I have read that dry lips can be a result of breathing through one's mouth which can be directly linked to nasal congestion. Are the most likely causes possibly related to factors such as minimal exposure to sunlight, wintry weather with temperatures between 5 and 15 degrees centigrade? Otherwise, is it likely linked to daily, yet minimal exposure to common vehicle exhaust gases?
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Kind Regards, Kreative
– Monad Dec 11 '15 at 20:24