help off with
help (someone) off with (something)
To assist someone in removing a clothing item. Help Grandma off with her coat, will you? I'll help the kids off with their bathing suits while you hang their towels on the clothesline.
help someone off with something
to help someone take off an article of clothing. Would you please help me off with my coat? We helped the children off with their boots and put their coats in the hall.