I understand.
I hate to say this, but I have this, as well. It's my ENTIRE BODY that gets affected. Any contact with water will cause my skin to get
INCREDIBLY itchy. You can't see anything; it's as if I"m scratching at nothing. But if I scratch long enough, I can turn red all over. The only parts of my body that are not affected at my face, hands and toes. I try my best to stay dry; at night, I don't sleep with covers on my bed, and I have the temperature in my room really low to prevent sweating. I don't swim, my showers are only 5 minutes or less, and when I wash my hands, I make sure that I don't get any water on my arms, or else I will have to through several minutes of scratching and pain.