Yes Epsom Salt in water was the only thing that helped me. I put coconut oil on my lips after soaking them, read my Epsom Salt Antifungal EC Post for step by step how i did it. Eat what you like while doing the cure.
I said it was better keep lips dry and not get wet because this disease is usually fungal, and fungus grows worse in water. However, soaking the lips in water and Epsom Salt and getting them wet kills the microbes on and in the lips so this is different from ordinary water.