I don't get colds very often & I don't suffer from allergies so I don't have sinus medications on hand. I was in the first few days of managing a cold with vitamin c, but I needed an otc for congestion. It works fast & I have not had any weird side effects like nausea or grogginess. The only thing is that the directions are in tiny print, would be better if a bold font.
Yes, I'd recommend this product