Many items are FSA-eligible without a prescription because they do not contain any medicated ingredients, says Miller. For example, you can use FSA money without a prescription for sunscreen with an SPF of 15 or higher, blood pressure monitors, orthotic shoe inserts, knee and back braces, breast pumps, nasal aspirators, bandages, first-aid kits, thermometers, heat and cold packs, and contact lens solution. See the eligibility lists at FSAStore.com for more information.