I just got a rash from cutting back Euphoria 'Fens Ruby' - I didn't notice the white sap until I was almost done with a fairly large clump. Fortunately, I went to an herb fair the next day and was able to try out a couple different salves. Found one that has provided good relief. Julia's Good Medicine, Wonderful First Aid Herbal Salve. Has all sorts of oils, herbs, and essential oils in it. Feels and smells good.