 [ Symptoms ] how long does the flu last i am doing a project on the flu and my mom keeps pushing me to find the answer can someone help [ Disease ] there are several causes of dry chapped lips many people experience dry lips in the winter months due to dry air and low indoor humidity other common causes include licking your lips frequently and dehydration here is a link to an article that discusses chapped lips and tips to protect your lips from dryness <link> take care