Nope the neti pot is not a new drug, but it does feel amazing. Trust me. It's great for allergies. I think of it like brushing my teeth. It's something to do everyday to clean out your nasal passages.
Basically you fill the neti pot with warm salt water. Place the spout in one nostril, lean over the sink, tilt your head, and let the liquid flow out the other nostril. Gently blow your nose to get any leftover salt water out and do the other side. Afterwards - you can actually breathe. My pick is the Rhino Horn.
It may look weird, but don't knock it til you try it. It's great for colds too.
They come in a variety of shapes and sizes. If you want to see them