@sickofbeinsick1 .. How difficult for you! Have you talked to your doctor about the sores in your mouth? Or, do you have a good dentist? They are trained to see all the problems in a mouth. If you don’t have a dentist, look for a general dentist and then ask for a referral to a specialized dentist. You don’t want to wait too long, as mouth sores can be a problem.
https://www.mouthhealthy.org/dental-care-concerns/how-to-choose-a-dentist
This web site by the American Dental Association has some good tips on finding a dentist.
Will you call both your doctor and dentist and explain that you have pus-filled sores in your mouth and need to be seen? Then let me know what they say!