when one eats, the parotid gland, that is in front of the ear and the sub maxillary
gland that is under the jaw bone, can enlarge from the secretions that are made in
them not getting out through their ducts and then the swelling and pain in the glands
dehydration is the major cause of this painful swelling and drinking an extra two
quarts of liquids per day, mainly water, is the treatment. Another cause is stones.
Stones in the parotid duct rarely cause this problem to the parotid gland, but stones
frequently form in the duct from the sub maxillary gland and frequently cause this
painful swelling. If the stone can be found and excised, this swelling can be
resolved. If a stone cannot be found and symptoms continue, removal of the
submaxillary gland is indicated.