My hubby drank so much water, I can't imagine where it all went!!! But truthfully, it seemed to help with the phlegm. Remember that old axiom about having a cold and how fluids thin out the mucous? He also, did the seltzer, rinsed with the salt/baking soda solution, and Biotene mouthwash and dry mouth spray (and still does those two.

I still think that the water was the secret. Good luck!