I have been getting blisters on the soles of my feet these past yrs., and now I'm getting them on my hands. I was told it has something to do with asthma. most important, is this condition contagious? I worry about my grandchildren getting affected. I don't know what to do, please help me. my foot dr. and my medical dr. keep sending me back and forth to each other. note, I have a foot dr. because of operations on both feet as a child.