M.M.
Hi D.,
If you have a vaporizor you should start running that during the day and night. That will help his sinuses. They have a vicks vaporizor that has a vicks vapor additive to it and that helps too. My son had the same thing not too long ago and that seemed to help him especially at night time. Also, if it gets too bad, especially at night, and you can't wait for the vaporizor to start working, take your little one in the bathroom and close the door and run the shower as hot as possible and make yourself a steam room. This works great in a pinch! Hope you and your little one feel better soon and hope this helps!