I have a friend in Holland, The doctors there cannot diagnose the problem of her son, 28. He is experiencing a cycle. Every 5-6 weeks his hands become very red, with sheets of skin peeling off and the calluses from work disappearing. It lasts about 3 weeks, is painful, like hundreds of pins pricking him. The doctors in Holland said AMC ZH, whatever that is. They encouraged her to see if she could find anything out on her own. Do you have any suggestions?