1. My gut biome (good and bad bacteria) changed with the Antibiotics I recently took, which somehow stopped the lips peeling
2. There is some sort of autoimmune response to food, which caused the lips to peel. Once not eating, the autoimmune response stop being triggered.
3. I was really hydrated from all the water?
My best guess is that when my body is not digesting food properly, due to an imbalanced gut flora, it sets off an autoimmune response which causes skin conditions like peeling lips and dandruff.