Please choose the correct ending to complete the given sentence: Health: [header] How to take care of an incision after thyroid surgery [title] Keep the wound clean and dry. [step] One of the most important things to do after you have had thyroid surgery is to keep the wound clean and dry. Follow your doctor's instructions for wound care and bathing following your surgery.

Ending1: Doing so may help prevent your wound from becoming infected and it may also help the wound to heal faster. [substeps] Do not immerse the wound in water until it is fully healed. Ending2: Do not jump into a pond with algae, or if the incision is painful, cover it with a clean bandage. [substeps] You should also wash the wound with plenty of salt water. Ending3: [substeps] Take a shower shortly before and follow their care instructions as well. Do not touch your wound with a bandage. Ending4: Never make the wound dry after applying heat, water, or wearing clothing. [substeps] If you wear excess clothes around your incision, it may interfere with healing and mar the healing process.

Answer format: ending1/ending2/ending3/ending4