Potassium permangate(Condy's crystals)if you can find a chemist that sells them are a very old remedy but they worked for me.They are tiny purple crystals that come in a jar,put one or two of them in tepid water and keep soaking your hands in it,they worked wonders for me,and when I mentioned to my G.P that I'd used them for my sons athletes foot he said I couldn,t have used anything better,I believe at one time they were used in operating theatres,I can truly recommend them for contact dermatitis,good luck.