When I go to bed at night I lay on my back and as soon as my head hits the pillow I will have an accumulation of mucous seeming to be coming from the nose collecting in the soft palate area behind the nose. It is so irritating and I have to constantly clear my throat and try to bring the mucous down. I have stiffness in the back of my head and neck. I constantly feel like the soft palate is filling up with mucous. Could this be some sort of sinus drainage and what over the counter medication can I take? I am without health insurance. Antihistamines do not work and seem to make it worse in the long run. I have tried sinus irrigations (neti pot) and that does not work either. This is affecting my sleep. Help!