Garlic cloves in the nose always cleared up my nose congestion. Just cut the tip of the clove so just the tip is exposed put it in the nostril and take it out right before it burns too much. This worked better than any nasil rinse. Be ready for drainage and the smell of galric in your nose for a little while. My wife does it now after she thought that was not quite normal.
Havent tried garic oil. Does this burn? The clove works pretty good.