question: I am a voice teacher and have one student (an older man in his 60 s) with a wonderful voice, but is plagued by constant phlegm. He is always clearing his voice and this malady has plagued him all his life. He takes antihistamines and this seems to help (Singulair 10 mg). I took this med and it helped me when I was having allergies. This gentleman is a bit better, but not completey. Is there something he could do to get rid of this? His vocal chords are fine according to his doctor.