I have this hard lump on my gum which i developed a few days back ..... I had a similar thing but more large , painful and puss from my upper fum to the under roof of mouth when i was in ninth grade . It was detected a a cyst formation and took 16 sittings with 16 injections and surgery to clean it in India . Now the lump is not painful and soft like last time but a little hard . I have applied peridex cream on it everyday and gargle with hot salt water and Listerine , the pain has completely gone but the size remains same ... Have i got that old cyst again ? Will this be too painful ? Is there any easy remedy than surgery of required ?