👉 Parotitis is a type of inflammation that occurs in the parotid gland, which is located on the surface of your cheekbone. It can be caused by an infection or injury to the parotid gland, as well as other conditions such as allergic reactions or autoimmune disorders. The parotid gland is responsible for producing and secreting saliva, which contains enzymes that help break down food in the mouth. When the parotid gland becomes inflamed, it can cause symptoms like sore