Just in case you do have to go to the doctor DT (if it is the salivary gland stone) make sure you are not allergic to atropine if they want to surgically remove it. Nearly killed me.
Atropine was meant to dry up saliva before surgery. Paralysis was affecting breathing.
Not allergic to any food (so far) but since found to be allergic to penicillin and erethromycin.