To put your mind at ease, please err on the side of caution and see your doctor. It was approximately 2 to 3 months in between my daughter's bouts of grossly swollen neck glands. She was diagnosed with Low Grade B-Cell Malt Lymphoma after two bouts of swollen neck glands and diffuculty swallowing. She was first given two rounds of antibiotics by her priamary physician and then saw an ENT who prescribed steroids to shrink her grossly swollen sublingual tonsils. That treatment was also ineffective so the ENT took a biopsy of the sublingual tonsils. That is when she was diagnosed with lymphoma.