Hi,
Welcome to Healthcaremagic Forum,
The three
white spots can be fungal growth or erosion of the mucosa along with
gingivitis. The treatment varies for these conditions. I would suggest you to consult a good ENT specialist/
dentist and get yourself examined and treated accordingly. For the pain you can take anti-inflammatory medicines such as ibuprofen or
diclofenac.
Good Luck
Regards
Dr. Naveen Kumar