Potters Vegetable Cough Remover or Venos Expectorant for Chesty Coughs both work brilliantly but taste awful.
Very dark chocolate is also good for coughs apparently.
Manuka Honey (10+ at least) is anti-viral and anti-bacterial - must be taken off the spoon since heat destroys the active element.
A few drops of tea-tree on a tissue on the bedroom radiator helps stop the germs spreading. Breathing the steam from a bowl of hot water with a few drops of tea-tree in it also helps.
Hope you feel better soon - there's a lot of it about and we all had it (my daughter ended up with bronchitis so if your chest feels at all "bubbly" see the doctor immediately).