Measles: The cause of measles is the rubeola, or measles virus. The virus resides in the mucus in the nose and throat of the infected person. When the infected individual sneezes or coughs, droplets spray into the air. The infected mucus can land in others' noses or throats when they breathe.
What is the indentation called between your upper lip and your nose? That indentation is called the philtrum, derived from Greek words meaning love... what is the name of the indentation above your upper lip that leads to your nose? The name of the grooved indentation above the lip to the nose is the philtrum.
Causes of Swelling in the Upper Lip. Lips are very delicate and are prone to injury. Any big or small injury like a punch on the mouth, or a bad fall on the face, or biting of the lip while eating can trigger swelling on the upper lip. It can happen due to an allergic reaction.