Hi, I am a 23 year old healthy woman. Yesterday afternoon, my upper lip started feeling a little rough so I applied chap stick to it, thinking it just needs some more moisture. However, as the day progressed the dryness of the upper lip did too. This morning, the left side of the left upper lip feels like a fine sand paper when I run my tongue over it. I reapplied chap stick to my lips a few more times today, but I just stopped now. This afternoon, I have noticed my lower lip looking dry or like it s going to peel but it doesn t hurt or feel rough as the left side of my upper lip. Also, there is no apparent discoloration, itchiness, or pain. Thank you.