<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi doctor, Ive been experiencing swelling and pain in my salivary gland. What do you think is wrong and what tests do I need?  <response>: Based on your symptoms, it sounds like you may have sialoadenitis. In order to confirm this, well need to perform a few medical tests. The first one is an X-ray computed tomography Scan ct to get a detailed image of the affected area. Well also need to do an intravenous fluid replacement to help reduce the inflammation. Additionally, we may need to do a CAT scan of your head Head ct to see if there are any other issues contributing to your symptoms. Finally, a blood culture will be necessary to check if an infection is causing the sialoadenitis. 