I am a speech pathologist and want to thank you all for the suggestions to help Roy with thick mucus in the throat. It is a terrible problem that afflicts many who have had oral pharyngeal cancer that are treated with radiation. I wish there was a single great solution. The body is amazing, and who would guess what an important role the production of saliva (thin, watery, not too much, not too little) can play in terms of mouth comfort. I think the suggestions above are good ones. If Roy has just recently finished radiation therapy, the condition should improve as time goes by. Using a humidifier at night, with the mist facing the head has helped some people I have worked with. Keep us posted on how Roy is doing!