About 5 days ago I got a nasty cold or something.Lots of green phlegm and blood so I started using some saline spray to flush my sinuses which got everything running clear again and took away all the pressure and pain.As soon as my head would start hurting I would use some spray and my head would feel ten times better.I did this only 3 times a day for 2 days before it ran out.Well I decided not to buy anymore and just let it run it's course.Well,I have not improved at all in 5 days.I'm wondering if it's okay to use saline spray when you have a cold or could the bottle just keep spreading infection? Which is another fear for why I didn't buy anymore.