I've used several different OTC medicines but these are the three that have worked best.
The downside is, I have't been able to find any more in either of our drug stores so it may not be on the market any longer.
Theraflu also comes in little packets like lemon powder, and you can mix it up with hot water if you would rather do that. It's not good for people with high blood pressure (like me) but when you feel badly that tends to take a back seat to the desire to feel better.
I'd give Theraflu Flu and Sore Throat a good rating. There is a "Severe" version that would be even better if I could find it.
This one helps with fever as well as all the other unpleasant aspects I mentioned with the Theraflu.
It's not even expensive. A bottle costs about five dollars at the drug store. There is a generic version at Walmart for a dollar less but I bought the Tylenol brand. I know this is unnecessary but I did it anyway.
This blue stuff has the added advantage of knocking you out so you can sleep. I take it at night, because it really causes drowsiness. I consider that a big plus, since when you are sleep you don't feel sick.
I figure on buying a few bottles of all three of these (if I can find the Theraflu) and putting them down in our medicine locker. I usually take NyQuil but I think these do a better job of getting you out of the hurt locker more rapidly than NyQuil does.
Since it's the cold and flu season, I thought I'd pass these experiences on. If you don't need the medicine now, you probably will before the winter is out.