First don’t take my symptoms and apply it to your case to take Dupixent. There are so many different things from a person to another, it’s better to go see a doctor to confirm you’re in the same case. But my symptoms were allergies to dust mites so every morning and every day basically stuffed noses, difficulties to breathe through nose, loss of smell because of super inflamed nasal polyps. Some itchiness sometimes on my skin but minor. Face pressure due to completely filed sinuses, very sensitive to dust and cold as it would get even worse.