My Ds who's age 5 has had his tonsils removed and his ENT surgeon has prescribed Nasonex spray to be used indefinitely as he is incredibly allergic to dust mites and has a permanently blocked nose making him mouth breathe. The mouth breathing can alter the shape of his face making it longer and result in him not having enough space for his second teeth. It can also reduce his ability in sport, affect growth and concentration and sleep. I want to obviously help him but I feel nervous about him taking a steroid spray. I am currently trying various homeopathic remedies, but he is mouth breathing most of the time. I have also looked into breathing exercises and when we read him stories we try and get him to close his mouth and breathe through his nose for the duration of the story. I wondered if anyone else has had a similar condition, or used Nasonex or has any suggestions for helping dust mite allergies. We are taking up the carpets in his room, hoovering regularly and got anti dust mite bedding. Thank you.