After exactly one year I have healed my EC completely partially due to a lead I got from this forum.
Apart ifrom swollen daily peeling lips, I had blisters and eating was traumatic.
I used the usual cortisone creams, butter, homeopathic treatments and just two things helped: within a month of the first I completely healed
1. Daily fresh juice of organic beet, carrot and apple... I still take it since it's so tasty. Should be organic
2 applying a homeopathic tincture of plantago, calendula and glycerine
The second reduced the problem but the true healing came with the juice.
My theory is that I had an inflamed intestine and liver ... I picked up the hint here on a post of Andreas Moritz
.... and once I began healing that EC just went away!!