Please choose the correct ending to complete the given sentence: Health: [header] How to heal a bitten tongue [title] Wash your hands. [step] Before you touch the inside of your mouth, take a minute to wash your hands with warm water and soap. If this is not available, use hand sanitizer.

Ending1: [substeps] Apply soap to both hands and lather your hands well for about 20 seconds. Rub the soap in your hands for additional warmth and lather your teeth between your fingers for easier removal. Ending2: [title] Apply petroleum jelly or clear hand sanitizer. [step] After you have cleaned your mouth, rub a thin layer of petroleum jelly over your tongue. Ending3: You will not be able to splint your tongue if you do not. [substeps] You will need soap that is very mild and is free of fragrance or preservatives. Ending4: The goal is to prevent the germs on your hands from transferring to the now open wound on your tongue, possibly causing infection. [substeps] Resistant viruses can also cause an infection if they come into contact with a bleeding wound.

Answer format: ending1/ending2/ending3/ending4