If you feel fhu ish with the this throat problem then the best herb is echinacea. De schulze does the strongest formula. there is discoman on this site that sells it as well at a discount. Schulzes formula has golden seal and garlic in it.
The Colon Cleanse may well have bought out some thing that was lurking around already.
If your chest feels very gunky then use tea tree oil/eucalitus in a steam inhalation to clear your chest. If your throat feels dry use benzion in a base oil. this will help to sooth and calm the lung lining.
Hope this gives you some ideas
Tiggs