nasal congestion
"Don't buy!  The bottle is freakin' impossible to open especially when you can't breathe and all you want is relief.  Tried everything to get lid off. Eventually I got it off with my teeth as this was only way I could keep the bottom half from turning as I twisted lid. I still ended up with medicine in my mouth because leaked while I was trying to turn lid off.  Most stupid design ever, go with a different brand, trust me!"