From time immemorial, turmeric has been used to resolve nasal congestion!

TURMERIC THE GOLDEN SPICE OF LIFE SINCE ANCIENT TIME
whfoods*com - The World's Healthiest Foods - clicking on each item brings up a page with detailed nutritional info and health benefits Including links to other healthy eating sites.
http://www.whfoods.com/foodstoc.php
E.g. TURMERIC (the main ingredient in curry) has powerful anti-inflammatory properties, comparable to the effects of hydrocortisone. It's effective in reducing symptoms of irritable bowel disease and rheumatoid arthritis. It's also a potent antioxidant and has cancer-preventive properties.
E.g. GINGER is also a potent anti-inflammatory, acting through the same biological mechanism as the COX-2 inhibitors like Vioxx--but without the deadly side effects. Ginger is also an anti-coagulant, which helps keep the blood from forming clots and also soothes irritated stomachs and nausea.
E.g. CINNAMON helps lower blood sugar levels by making cells more sensitive to insulin (similar to the action of antidiabetic drugs).
►►► http://www.naturalnews.com/024644.html ◄ ►
The common cooking spice turmeric helps prevent against Type 2 diabetes. Furthermore, turmeric is an amazing painkiller and anti-inflammatory. Studies have shown turmeric to be as analgesic, and much safer than nonsteroidal anti-inflammatories like aspirin and phenylbutazone - but without their nasty side effects. Aspirin also damages cartilage - which is ironic since it is often prescribed for the pain of osteoarthritis. Aspirin damages the liver & kidneys and both suppress the immune system. Aspirin causes ulcers and damage to the intestinal tract.
Turmeric has anti-arthritis powers. Rheumatoid arthritis arises when the immune system mistakenly attacks tissue in the joints, leading to inflammation, pain and progressive joint damage. Researchers found that turmeric inhibited a key protein called NF-kappa B, which controls the activity of a number of inflammatory substances harmful to the joints in RA.
►►► Scientific American Magazine ◄ ►
http://www.sciam.com/article.cfm?id=spice-healer&print=true