I have a dry mouth all the time...has had it for yrs. About 3 weeks ago I got sick with a scratchy throat and spitting up white foam, coughing until I would throw-up chuncks of white foam nearly choking to death. Can lay own at night and get any sleep, because I start coughing and throws up from my scratchy throat. I've been on Nexium for about 14 years for acid reflux and nothing has helped for that. I've been to an ENT doctor, but everything seems ok, except I have a deviated septum. I have a very sore throat right now from al the coughing and throwing up. I'm tired of being sick and no one seems to know the problem. I'm thinking about going to the ER right now. Hope someone can help me. Thank you