u/Exciting-Working8059

Just noticed this recently on my girl, she did just shed this week, the bump wouldn’t come off with a QTIP but didn’t try to do it hard or anything, it feels a little hard to the touch, and only the small area at the front? I’m so scared this is mouth rot but I know there is other causes such as one of the bugs bite her in feeding and it’s healing or stuck shed, anyone recognize what this could be? Please I’m worried about her.