Salbeibonbons (a certain kind of lozenge) are sold at pharmacies. They are inexpensive and help with colds, flu, throataches, gum problems and bad breath. Think of them as a medical candy.
Klosterfrau Melissengeist is a liquid cold and flu remedy. It has been around forever and is a true brand name. It also works if you are suffering from muscle aches or back pains. Contains alcohol. Available at pharmacies.