I had a head cold with a runny nose, nasal congestion, etc. The works! I decided to take oil of oregano a bit differently this time and instead of putting a drop under my tongue, I put a drop in a bowl and poured hot water over it. I put a towel over my head and for about 10-15 minutes I inhaled the steam. Within less than 20 minutes both my nasal passages were open and I could breath in and out of them with ease. I was astonished at how fast it worked!