The man with sweaty palms and soles

A 21-year-old male college student presented with excessive severe bilateral sweating of his palms and
soles for the past 3 years, which has progressively worsened. His symptoms occur throughout the day
but worsened during exams or whenever he felt anxious. The condition has caused him difficulty in
holding objects and writing assignments, and has resulted in public embarrassment on several occasions.
He has to wipe his hands with a handkerchief each time they sweat. He also needs to change his socks
frequently. No other area of his body is similarly affected. He denied any associated symptoms, such as
pungent body odour, changes in weight, fever, heat intolerance, or changes in bowel habits. He has no
known medical illness and is not on any medication. (Copied from article).