Differentiating between a seere allergic reaction and anaphylaxis can be difficult, and patients should be instructed to err on the side of caution in terms of when to use their epinephrine.

• 很难区分严重过敏反应和速发型过敏反应，就使用肾上腺素的时机而言，应当教导患者父母亲小心驶得万年船。