Hello,
From the symptoms that you have described, they seem like canker sores which appear due to any infection. Pain from a canker sore generally lessens in a few days and the sores usually heal without treatment in about a week or two. Avoid spicy or acidic foods during this time. You can use topical ointments like numbing ointments, such as benzocaine , anti-inflammatory (steroid) gels, benadryl allergy liquid mouthwash, oral preparations of steroids and vitamin supplements.
But if the sores last for more than 3 wks or start spreading then please consult a dermatologist. Oral lichen planus has to be ruled out. It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
enlarged gland in the throat area to
also wanted to clarify that the sores are whitish in the middle and red around it