I also have the same problem with incredibly dry tight lips with what feels like a thick tight sheet over the top of lips . They are also slightly inflamed when I wake up in the morning. It started during the cold weather and has not gone away . Ive tried Burts Bees , Vaseline , Nivea lip balm with factor 15 . They just help me get through the day but never gets any better . I even tried Sudocrem last night and now they feel worse !
The suggestion of 100% coconut oil is my next hope and luckily had a jar in the cupboard so have just applied . I’ve not had this ever before it’s bizarre. Will keep you posted re coconut oil ! .