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To treat this, a doctor needs to use a scalpel to debride, or cut away, dead tissue.

The first surgery that Mr. Leno underwent was to excise and debride damaged tissue and place temporary skin grafts to the burned areas, Dr. Grossman said.

Pineapple contains a mix of enzymes called bromelain, which, according to the N.I.H., may debride scar tissue and decrease inflammation.

They are being sent to the Oregon Zoo where they will undergo surgery to debride their lesions, and be treated with an antifungal medication.

“Once they’re stable, we can debride and clean the wounds,” Gebhart said.