A very potent steroid that is great for healing hard skin is Dermovate. The second dermatologist I went to see gave me Dermovate for my lips but I had heard that this is one of the most potent steroids there is and I also had read that other people had tryed it before. For some it cured them but only while taking it and for some it made the condition worse. I decided not to take it. Later on I went to another dermatologist because I had some type of allergic reaction on my toe. He prescribed Dermovate for my toe, I still had the tube from the last time so I used it. At first it made it sort of crusty but after 4 weeks it completly healed. My toe was bad it was like raw skin showing and after a month it got cured with Dermovate. I don't know if Dermovate can cure EC but It's possible BUT DERMOVATE DOES CURE HARD SKIN.