I have tried both Elidel and Dovonex. Elidel caused some hypersensitivity (as did Protopic)and ultimately had no effect on the condition.
I have also tried Dovonex, and had stop after 1.5 weeks because my lips had an adverse reaction to it - the sides of my mouth were burning/peeling.
I was inspired to try Dovonex after reading about a success story of someone who 90% cured ec using Curatoderm - the closest thing available in north america is Dovonex. Despite my reaction to Dovonex I would try Curatoderm if I can ever manage to get my hands on some.