I still use chapstick everyday, which I don't mind at all and it makes my lips look nice. I don't ever have skin build up anymore, so it's a huge relief for sure. If I stopped using chapstick I don't believe my lips would actually build up skin, but they would feel dry and uncomfortable, so I prefer to use it. All of my friends use it too so it doesn't really matter.
Before after I was healed if my lips ever felt like they were acting up I just went out in the sun for a day and they were fine after that. The sun for me has been my savior in this condition.