Please choose the correct ending to complete the given sentence: Health: [header] How to treat an eye injury [title] Use eyewash to flush the eye out. [step] Eyewash is a liquid solution, usually of saline, that should be used to clean eyes in case something gets into them. Some workplaces, such as laboratories, have eyewash stations or kits available for workers in case of an accident.

Ending1: However, eyewash stations do not have these tools and, as they are often stocked with disposable eyewash bottles, avoid using them. Using an eye wash made from eyewash can help prevent some of the dirt, bacteria and grease from transferring to eye fluid. Ending2: [substeps] If you work somewhere with an eyewash kit or station, make sure you know where it is so that you can find it in an emergency. Eyewash should be at a comfortable temperature for use. Ending3: If you don't have access to one, you should rinse your eye with warm water. Never pour or dampen your eyewash, or wipe it from your eye. Ending4: Do not use tap water and any other cleansers that are prescription or recommended by your eye doctor, as these could contain arsenic, adenochemical or estrogen. Always wash your eyes before and after your eye treatment.

Answer format: ending1/ending2/ending3/ending4