Red dot on lip after lip filler. Still there after a year. (photos)

I’ve been having my lips injections for 2 years, however the last time I had them done there was no real bruising but I a small red dot which I assumed was from the needle and a little bit of blood, a 9 months down the line it’s still there? It’s not painful although it’s a bump, It just won’t go? If I wear makeup you can see the little bump where is putrids slightly, just wanted to ask what it is and how I can go about getting rid of it or if it will go natural.