Vam (Michigan) on 07/29/2013:

It gives techniques for draining the sinuses and nasal passages. I had to look up the anatomical terms on wikipedia, but I tried it once on myself (looking at the ceiling) and there was definitely increased drainage and some noticeable clearing up. Some of the steps might be a little difficult to do on yourself, but still possible - though your thumbs might have to point the other way.