Ihave Clear Foamy Mucus Drainage. Worst In Morning But At

Ihave clear foamy mucus drainage. worst in morning but at times all day. stuffy nose when i wake with the drainage. .i take an ativan 1mg helps . doc says lungs sound good.so its a bronchitis condition. morning and evening worse . if iwake 4am etc to goto bathroom then drainage starts and have to stay upto take ativan and clear for 20 minutes or so. can't clear it until i am up and rid itmout, never smoked or drink