Hi, MY 7 year old had chronic sinusitis.She had 2 sinus surgerys and was kept on singuliar as a preventive.When she stopped the singuliar her sinuses cleared,and constant post nasal drip went away.My reason for stopping the singuliar in the first place was because she was having chronic stomach pain/anxiety.The stomach pain stopped,anxiety almost gone and to my surprise her sinuses have never been better.
Something to consider it to take your children off dairy products. Not saying that will cure it but most likely is contributing to the problem. I went off them completely and can now breathe through my nose. Something I haven't been able to do for years.
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