M.M.
We use Zarbee's. My son says it tastes bad (it is a honey-grape combo that really does taste weird), but I hold his nose when he takes it and he is OK with it that way. It works a bit, but not any better than a teaspoon of straight honey in my experience.
And yes, my son is in daycare and has had very few days this winter where he's NOT coughing or nose running. It's nothing horrible, no fever, very mld symptoms, but it does seem to be neverending. If you notice a fever, it's worth a trip to the doctor.