Hard boil bump on gum of extraction site

I have extracted the upper right wisdom tooth 3 months back. The site is healed and almost closed now. Still have few gap and OMFS said it takes time to close. I noticed a hard boil like bump on the gum of the extraction site. I noticed it one and a half months back. Went to oral surgeon and he said if it's very painful, asked me to come back. If not, he said it will observe on it's own. I left it for a month. I have some lower jaw and neck pain going on for 5 months now. So this hard boil bump pain doesn't bother much. But it feels like sharp pinch pain sometimes on that gum. It's so small pimple like hard bump. When I run over my tongue on that, it feels so hard.  Do I need to wait for a month more to see if it goes away on own or do I need to go back and take that off? Is it ok to have that bump for long time?  do I need to take that off soon?