Hi Laura,
Sorry to hear you're feeling crummy. Rad is like that, and Im afraid you're not going to see much change (for the good) for a few more weeks.

Mucousitis is normal, so are the sores and the pain. I wound up taking morphine to control that side of things.

Never heard of the rinse you were prescribed, I'm afraid. I'd agree with you, I'd be concerned about an infection with a change of color of sputum. Your RO will be on top of that today, I'm sure. Hang in, you're getting close to 1/2 way!
Wayne