I can't get my netipot to work, please help!?!?

My doctor told me to get a netipot yesterday to use with some allergy pills and nasal spray. When I got home I tried to use it, I know I was following the directions and I even had the help of my husband lol but the water will not come out the other side. I'm really congested, so I don't know if maybe the path between the two nostrils is clogged or what... but any advice on how to make this work would be greatly appreciated! Thanks