Hi Joctk, i bought a Novita humidifier and used it quite often when my baby was very young. Seems to work well for his eczema and runny nose. He's older now and i've used it less frequently as his condition appears to have improved.
Joctk, there's humidifier and diffuser.
For sinus and dry.throat can use diffuser so you can use it with essential oils too. But of course have to use good essential oils.
I am using osim humidifier. At first i dun believe it works for my girl sinus. And now that i use it.. she doesn't make those nose sound anymore and could sleep well through the night. It really works. I did not use essential oil as she is only 2 mths old.