I cut my lip while eating almost 4 months back. Since four months I have a bump there which gets inflamated and then comes down every 2-3days. I went to a physician. He removed the gel out of it and removed the extra skin. He said it is a mucoseal. Even though he treated it, it just doesn't stop. It again came back with a bump and every time it gets sensitive because of hot food or a slight touch of my teeth, it gets inflamated.