Sometimes stones form in the salivary glands or their ducts so saliva can no longer drain properly; this is somewhat comparable with kidney stones.
Pain often occurs during and shortly after a meal. If inflammation of the salivary gland occurs due to the blockage, this may be accompanied by swelling, redness of the skin, persistent pain and fever.
Salivary stones and salivary infections can usually be treated with medication. Sometimes, however, this requires surgery under local or even general anaesthetic.
Your doctor will discuss the treatment options with you.