My 99 year old dad has been dealing with Gerd for years along with kidney cancer which recently metastasized to his lung. Every night, usually several hours after he eats dinner he feels like phlegm is caught at the base of his throats and he starts to cough,trying to clear it. He takes a proton pump med along with other acid reducers. The tumor in his lung is fairly small and he has had this throats clearing for years so we don't think it is caused by the tumor. Has anyone else out there experienced something like this and found relief. Once he starts coughing it goes on for hours. Thanks.