have been experiencing swollen salivary (I think) gland on right side only, in front of ear/partly into my face, and just below my right ear .. very sensitive to the touch & noticeably swells when eating (but not drinking fluids) .. goes down after finished eating, but some swelling remains. not extreme pain, but painful all the same .. more to the touch than an ache. infection ? came on very suddenly .. thank you, Paula