First aid for a serious burn includes?

First aid for a serious burn involves several key steps: immediately remove the person from the source of the burn and ensure their safety. Cool the burn by gently rinsing it with lukewarm water for 10-20 minutes, avoiding ice or very cold water. Cover the burn with a clean, non-stick bandage or cloth and avoid using any ointments or creams. Seek emergency medical attention if the burn is severe, covers a large area, or affects the face, hands, feet, or genitals.