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Death of cells or tissue through disease or injury.

To prevent infection, run water over minor injuries to clean them, and remove any debris with tweezers. A thin layer of antibiotic ointment may be used for dirty wounds. Cover the injury with a sterile dressing. Once necrosis is present medical care is needed.

See a healthcare professional right away for:

• Severe, persistent pain.
• Red, warm, swollen area.
• Rapid discoloration of skin.
• Fever.