Re: Marda's comment - A lymph node and a salivary gland are not the same thing, and self diagnosing on the internet is likely to be the least productive course of action without a definitive diagnosis.
To the original poster, C., Your doctor's advice seems unsatisfactory, as it has not relieved your problem. See another doctor, or better, a specialist, and get a better answer. As a personal example, I've been getting tonsillar stones periodically.....very concerned, and not knowing what they were (sudden appearance of a white spot on my tonsils, with sore throat and swelling), I went to my primary care doc. They cultured it (nothing) and told me it was possible to get food stuck in my tonsil. This seemed unlikely to me. Instead I sent a picture to my DENTIST, who immediately identified it as a tonsillar stone (something I was producing, not something getting caught), and explained what to do. So, short version, if you don't like the first answer, get another opinion. Doctors are just people, and they don't know everything.
Hope you get some help!