Another thing to look in to if you develop a cough: Diabetic Tussin. The better pharmacies and the larger grocery stores should carry it. It says on the label:

Sugar free
Alcohol free
Sodioum free
Fructose free
Sorbitol free
Codeine free
Dye free

On the other hand, I agree with KristyC; when you're sick, sometimes it's better to just take whatever medicine soothes the symptoms. You can always return to your regularly-scheduled LC routine when you get better.

-G.