Thanks for sharing your concern.
Your history suggest red bump what you are feeling may be because of any entrapment of foreign body in the gum. This is causing your irritation.
Do not worry just keep a close watch on the lesion.
Check for any signs of inflammation (redness
, swelling,raised temperature in that area and pain) only then it should worry you. Else it will be fine.
Meanwhile do warm saline rinses.
Use antiseptic mouthwash and observe.
Take Vitamin C
This is not concerned with the surgery of eye , so nothing to worry.
Hope this helps.