Doctors remove dead skin with pineapples. No, not the way you think.
Pineapple is the only natural source of a protein-digesting enzyme called bromelain. Bromelain is used in a topical medication called NexoBrid that removes dead tissue in severe skin burns. The meat dissolving action of bromelain led to a myth that workers who harvest and handle pineapples eventually lose their fingerprints. Bromelain does not eat away human fingerprints but it is a useful meat tenderizer.