I have been on my second round of Dupixent since 1/30/2025 after a long break as it seemed that I was not responding well the first round after 5 months. I feel so much better with significant decrease in chest congestion. .....anything is better than being on prednisone. It may take several months before you feel the effects. Just keep in close contact with your pulmo Dr and let him/her guide you through.