Everytime i eat my salivary gland under my tongue swells and after a few minutes the swelling goes down. is something wrong?

Blocked Duct ?: It is possible that you have a blocked salivary duct. See a local oral surgeon to have it examined and treated, if necessary.

Clogged duct: Sounds like a clogged duct. You are producing saliva normally, but drainage from the gland to the floor of the mouth is impeded. Usually a plug of mucous or bacteria or a calcium stone causes the blockage. It's not a complete blockage as the swelling does go down. You can try holding hot salt water in your mouth to see if that helps expel the blockage. Normally resolves with time.

Sublingual duct: Partial blockage of your duct. May resolve over time depending on the cause - trauma, inflammation, stone developing (sialolith), etc. If it persists, see the Oral Surgeon. Often this can be cleared with a small cannula. Good Luck.

Blockage, see DDS: Blockage makes saliva back up inside the duct, causing the salivary gland to swell. The treatment varies with the cause. See your dentist today.