On Tuesday morning, I woke up with a sore throat. I had inklings of sinus congestion in my head and ears. Afraid of the ensuing upper respiratory infection, I took Mucinex, which I recently discovered at my local Rite Aid store. It is a bottle of extended-release tablets containing guafenesin, which is an expectorant. I can't take decongestants because they make me loopy and I can't sleep, so I'm used to drinking cough syrup every 4 hours when I need to relieve my congestion. Now, I can take one pill and be set for 12 hours! While I think I'm destined to get an infection this time anyway, my symptoms feel better and I'm hopefully staving off a worse infection by taking the expectorant.