Hi Chikadee. I have a portable machine called the Omron CompAir XLT. There are other Omron nebulizers on the market. I haven't used mine in forever, but it works by pouring about
10 ml of sterile saline into a vial that connects by a hose to the nebulizer. Once you pour the saline, you place the clear pointed cap on top of the vial. When you turn on the machine air runs from the hose to the vial and a fine mist of saline is produced. You place the pointed cap in a nostril and breathe normally. As your sinuses clear, you'll taste the saline in your mouth. I used to snort mine instead of breathing normally and it quickly cleared my sinuses.
Currently my pulmonologist has me take 2 puffs of Nasonex in each nostril twice a day, oral Mucinex 600 mg twice a day, and one Claritin each day. This is working well for me, but if this ever stops working and my sinuses block, I'll also use the Omron CompAir.
Let me add that when the left sinus in my cheek closed, surgery was the only option. While it was closed that sinus, which was filled with bacteria, was giving me a constant sinus infection. I felt like poo in addition to the usual Lupus, Sjogren's, Fibromyalgia, etc. The surgery was very successful and I felt so much better after it. I still occasionally get infections in the right sinus. I hope this helps! Love, Butterflake