FluMist Home is available only online. People ordering the nasal spray will need to complete a medical screening questionnaire at FluMist.com that is reviewed by a health care professional, according to the drugmaker. FluMist Home’s online pharmacy will then collect the insurance information and bill the health plan directly.

FluMist, the first self-administered flu vaccine spray, is now available for purchase. Here's everything to know, from cost to age requirements and more.