this stuff is more for people that are in there 40's or 50's and have spent most of their lives in the sun like farmers and fisherman. i highly doubt and my derms not just these ones but all the ones i have seen have said this is not a sun/cancerious disease.
in regards to ec maybe it is just from chronic chapped lips that have a break out and start this horrible cycle i mean we all were chapped lip suffers!!! before getting this. and i find it that its only the months leading into ec were most of us started having dry/chapped lips. now i dont know if thats the early start of ec or the sympotms but yeah i just dont know!