Just picked up on this whilst investigating bananas (don't ask..

).
Maybe worth a try ...LOL.
'More than just a tasty fruit, the skin of a banana contains esterified fatty acids, which can be used as a skin lotion. Natives rub banana peels on their skin problems; which is supported by modern research, which says that banana peels used on red, scaly patches of psoriasis will provide a natural relief. Exorex lotion is a patented lotion created from the isolation of the esterified fatty acids and is sold commercially.'