Let's take a minute to talk about your medication. 
This is Dupixent. It helps treat moderate to severe eczema and moderate to severe asthma. It may have other uses too. In patients who have eczema, Dupixent may help clear your skin and reduce itching. 
Dupixent comes in a syringe that is good for one dose only. Before you give a dose at home, you should read the "Instructions for Use." Your doctor will teach you how to inject a dose and how to dispose of the syringe. You should feel confident with your training. If you still have questions, your doctor or pharmacist can help. 
How you take Dupixent will vary based on your condition. You should use it exactly how your doctor tells you to. 
Most people tolerate this medicine well. Common side effects include pain or swelling at the injection site, and cold sores in your mouth or on your lips. These effects are normal if they are mild and should go away. It could also make your eyes or eyelids dry or itchy. 
Tell your doctor if you notice these effects. They will help you manage them. If these or any other side effects become reasons you want to stop taking this medicine, please talk to your doctor or pharmacist. 
As with any medicine, rare but more serious effects could occur. With Dupixent, these include allergic reactions and eye problems, like changes in vision or eye pain. You should read the Patient Information sheet to know which symptoms to watch for and when to report them. To help keep this medicine safe for you, your doctor will follow your condition closely. 
You should talk to your doctor or pharmacist before taking other medicines and before receiving vaccines.
Women should talk to their doctors before becoming pregnant or breastfeeding. 
For best results with Dupixent, ask about helpful support services for patients that are available.