I had a forehead lift in July 2012 which left me with no perspiration on my forehead. My plastic surgeon has never heard of this and wants me to wait to see if it will resolve. My dermatologist says he has seen this in other surgeries around scars-some resolved, some not. A website of a PS who repairs other's work says that this can happen when the skin is damaged and to seek repair in 3 months. He is in NY and I am in CA. I am at a loss. Who should I see for a prognosis and find out what to do?