Re: We can rule out fungus, if this doesn't work
The last time I went on the Candida diet a year ago, I was working on a farm (doing exercise and stress reduction) in a very dry climate of Argentina. I noticed the area of peeling decreased but the peeling cycle rate remained unchanged at 3 days. Upon travelling to tropical northern Brazil near the rainforest, and falling off the diet, the cycle increased slightly and the area of peeling remained unchanged.
Then this summer in drought-stricken Texas the area of peeling increased (maybe connected with an increase in alcohol, marijuana and anxiety), and finally after moving to cold and moist Portland and going back on the Candida diet, the peeling cycle went from 4 days to now 7 days, while the area has decreased slightly (the skin is least connected on the side edges and in the middle portion with the skin on the very bottom of the lip looking much less dead--still it comes off with the other dead skin when I exfoliate). The upper triangle has become more connected and cohesive as well.
So this is clearly a complex situation, and as I've said before it's quite possible that different things affect the RATE of peeling than the AREA of peeling. But my experience above brings no conclusions, just a hypothesis that moisture slows the peeling cycle in the absence of infection.
I think even the movement of our lips when talking or sleeping could be a significant factor in the moisture and chronic physical stress issues... though I'm not ready for a vow of silence and a mouthguard just yet.