Ditto on drinking more water. Every time I get chapped lips, not drinking enough water is a big culprit. Aquaphor, Vaseline, Chapstick, they all work. They also keep you from licking those chapped lips. Licking one's lips is a huge culprit.
Sometimes a secondary Candida or other infection make the problem worse.
Everyone has their favorite remedies, but avoid anything flavored or scented to avoid allergies. I have never seen an allergic reaction to Aquaphor or Vaseline.
Also eating too much some certain fruit may trigger a local reaction, such as kiwi.
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