Final answer:
The patient understanding of the teaching on flunisolide (AeroBid) is demonstrated by their statement to rinse the mouth with water after each use.
Step-by-step explanation:
The statement that best demonstrates an understanding of the teaching on flunisolide (AeroBid) is option B: "I will rinse my mouth with water after each use."
Flunisolide (AeroBid) is a corticosteroid inhalation medication used to prevent asthma attacks from occurring. Rinsing the mouth with water after each use helps prevent side effects such as oral thrush or sore throat, which can be caused by the medication. It is important to follow proper techniques and precautions when using inhalers to ensure their effectiveness and minimize side effects.