Mr. Foyle, you have a prescription for insulin injections today. It is your first time to have an insulin injection, isn’t it? If so, I will now to tell you how to use an insulin injector.
フォイルさん今日はインスリン注射が出ていますが、インスリン注射は初めてですね。
使用法を説明いたします。

Before using it, please gently shake the pen up and down at least 10 times. Then prime the needle. You must make sure a drop of insulin comes out. Inject the dose once a day, either your abdomen, upper arm, thigh or bottom and make sure that each time 2 to 3 cm away from the previous spot of injection.