Nasal Polyps - I've suffered from nasal polyps for seven years now and the last three I have lost my sense of smell. I've tried every possible remedy and two sinus operations and nothing works. The tea tree oil remedy some of you mention is, I believe, only effective for polyps caused by fungus, or perhaps those in sinuses you can get to with a Q tip. Mine are too far inside for that and although the diluted tea tree oil feels good and opens up the airways it did not cure them.
I've tried everything else, including fresh water ray oil, acupunture, Sinus Wars homeopathic remedy, various natural cold remedies, antihisthamies, all kinds of antibiotics -- you name it. There are only two things that work, and both temporarily: corticosteroids and a draconian alkaline diet. I think you all know about steroids; in high doses they work like a dream, but the polyps come back after a few weeks and, at least for me, the sprays don't work.
However, the diet I did was near miraculous. I was actually not even thinking about the polyps, but just wanted to do a near fasting diet for a week or so. I eliminated coffee, alcohol, dairy products, meat and anything else that causes mucus, and lived basicically on a few nuts, water and raw vegetables for a week. Suddenly everything cleared up and I felt like new and could smell and taste again. Even my ears, which I hadn't realized were partially blocked because of the sinusitis caused by the polyps, were suddenly free. Unfortunately after I started adding back some cooked foods (although still totall vegan) the polyps returned and I lost my sense of smell again. At least I lost 7 kilos in less that a month.
So if you are really frustrated and have some self control, try a fast or near fast and eliminate all acidic foods.