What is an important step in the care of a passenger experiencing air sickness?

Providing sick bags is an important step in caring for a passenger experiencing air sickness. When individuals suffer from air sickness, they may feel nauseous and need to vomit. Having sick bags readily available allows them to manage their symptoms in a discrete and sanitary manner, minimizing discomfort and the risk of soiling the aircraft or themselves. This practical support can help the passenger feel more at ease and can prevent escalation of their distress.

While other options may seem helpful, they do not address the immediate need for containment of vomit in a practical way as sick bags do. Offering food may worsen nausea, encouraging someone to look at the horizon can help with balance but isn't always effective for everyone, and allowing someone to walk around could lead to further discomfort or accidents. Thus, having sick bags on hand is a critical measure in effectively managing air sickness.