I had the same experience with phenylephrine. It dried out my sinuses, which helped me slightly with decongestion but moreso with post-nasal drip. The effect w

I had the same experience with phenylephrine. It dried out my sinuses, which helped me slightly with decongestion but moreso with post-nasal drip. The effect was not dramatic, and as I understand it, people with allergies need that dramatic effect to be able to breath well. It seems to me phenylephrine was effective for something different than what the FDA had in mind, but due to their folly, now both phenylephrine and pseudoephedrine are unavailable to the average person.