I got peeling lips from taking an Antibiotic (Minocyline) for acne. I know an Antibiotic cant cause this, but it can cause Candida Overgrowth which in turn I belive causes peeling and swollen lips!
I remember one day I just woke up and had peeling/swollen lips out of no where. I was always a healthy person and after this I started physically picking/pulling out my lips which intern caused more damaged to my lips.
I strongly believe peeling lips are caused by candida overgrowth. Ive been on candida diet for few days and my lips havnt been swollen? so swelling is related to diet? Everyone should do the spit test!
This is just my theory, as alot of people who got biopsy done had yeast overgrowth in their lips.