Let's take a minute to talk about your medication. 

This is an EpiPen. Each pen contains one dose of epinephrine. 

Epinephrine, or adrenaline, is a hormone that your body makes naturally. Your body makes a lot of epinephrine when you are scared or stressed. This raises your heart rate and blood pressure so you can react. Then, it goes away quickly. 

During a serious allergic reaction, your body needs epinephrine, but does not make enough. EpiPen lets you put epinephrine into your body. The dose will help your heart and blood pressure stay strong while you call for emergency help. You need emergency help to continue treating the allergic reaction. 

Serious allergic reactions can cause death if they are not treated in time. So, do not delay in using your pen. And, it's important not to be afraid of using it. The device is big, but the needle is small, like a flu shot. You should inject the dose into the middle of your outer thigh. You can inject it through your clothing if needed. 

After a dose, it's normal to feel a little shaky, or have other effects like anxiety or a strong heartbeat. These are normal and should go away quickly, especially if you can remain calm. 

You and your caregivers need to become confident using the pen. Your doctor will tell you how and when to use it. You should read the full instructions inside the carton. There is a training device in the carton, so you can practice often. 

You should store EpiPen in the original carton. Check it periodically to make sure it is clear, colorless, not expired, and that the blue safety release is intact. 

For best results with EpiPen, use it at the first sign of an allergic reaction.