Before considering the potential side effects of an injection for eczema like Dupixent, it is important to consult with your doctor to properly evaluate your condition and review the treatment options that have been tried so far. It is ultimately up to your doctor to determine if Dupixent is the right prescription for you. In most cases, Dupixent is well tolerated with few instances of discontinuation. The main adverse effect of Dupixent is pain or irritation at the injection site. There may be other side effects, but your pharmacist will be able to provide personalized advice based on your medical history, needs, and preferences if this product is prescribed for you.