"This medicine is like magic. I had constant post-nasal drip and congestion before I took this medicine. It was so bad I had trouble sleeping because I couldn&#039;t breathe through my nose. I also used to get sore throats frequently due to the post-nasal drip. On Allegra those symptoms are gone. I can actually breathe like a human and sleep better. The only side effect is dry mouth but that just makes me drink more water which is a good thing. I am glad this is available over the counter now, but I hate how you only get 10 at a time. "