Hi, i have a small painful hard lump in the middle of my underarm, its close to my implanon but ive had that since december and nothing has been wrong with. Its also red with a few little bumps on it and gets itchy but hurts alot if scratched at all, no pus or liquid, very bruise like but i dont remember hurting the area at all, it just apeared one day, please help, thank you!