I had all my upper teeth removed and a denture plate put in place, it has been several years now and about 3 years ago I started noticing this puss drainage from where one of the teeth were, a dentist told me as long as it was draining not to worry about it, now the drainage has a very foul smell and there is a lot more of it, I drain it at least 4- times a day and then rinse with mouthwash, what is causing this? Due to my insurance I cannot get into another dentist here for at least 14 more weeks.