I am male aged 26, my lips and also under my lower lip always getting dried and chapped especially in winter season. One year ago in a winter season my lips were getting dried and chapped and with the passage of time it was arisen a black circle under my lower lip.

Now since one year I have this black circle under my lip and I didn't get any relief from this still. Kindly looking for your valuable advice to get rid the black circle
Your reply will be highly appreciated and more helpful