Talking about this, I did some research on the benefits of breastfeeding, especially how long you are breastfeed as a baby. It can to some degree prevent some skin diseases, and cheilitis is one of it. I don't think this is irrelevant to our condition. Actually, I have blamed my mum for this for some time (because I know more about this as I am a mother now), but I tend not to blame more as anyhow, we cannot change anything now.
Yes Ecowner. I agree with you. My siblings in general have better skin than me and were breastfed longer than I was. My one sibling had oral thrush as a baby even but has no problems with cheilitis to this day. I think that some people on here may have been breastfed as a baby but it was not long enough.