Hair of the Dog

This one comes to us via my brother.

He was visiting my grandma in the hospital and one of her doctors came in to see how she was doing, if she was having any chills or feeling feverish. My brother translated this to her in Russian and she replied to my brother in Russian that she had purchased some sort of thick belt made of dog hair(??) that keeps her warm. My brother just told the doctor in English that she was fine. My grandma nodded and said to the doctor in English, "I have dog hair," while pointing to her stomach.