Symptoms of this situation will not just involve your lips, but also will involve your mouth or gums. It is possible that the swelling of your upper lip was due to a previous dental extraction. Ask your dentist for any follow up regarding your previous surgery to know the progress of your recovery.
A common infection that causes pain and swelling in the mouth and gum to children is known as gingivostomatitis. For more information about this infection, visit Southern Smiles’ dental centre in Miranda.