I'm 18 and have never been allergic to anything in my life. I've always put on Vaseline or Coco butter at night before I go to bed to avoid chapped lips and in the morning when getting ready, I've always used colored lip stains under coco butter to keep my lips soft with a pop of color. Late last July my lips began to develop a black spot on the edge of my mouth where I applied the lip stain the most. It went on like this into August and become severely dry and sometimes even burned. I'd try to use the lip stain to cover it but eventually my whole lip turned black all together and began to look like I smoked, which I don't. I soon realized the cause was the lip stain and threw it away and it seemed to get completely better. I decided to just use the coco butter for a while and then decided I could possibly use a lip-gloss from Mac under it. My lips had gone back to being severely dry and develop the spots again. I stopped using both the coco butter and lip-gloss and used just Vaseline and my lips got worse! I tried Shea butter,and EOS chap-stick and nothing has worked. I've also developed a lip-licking habit which is the only way to keep my lips from chapping for at least 3 seconds but it goes back to the way it was of course. I know I'm allergic to an ingredient in the lip-glosses but I don't know what to do about my chapped lips.