cuts in my mouth

1) I had a large white circle on my inside of my mouth a inch from the opening. at one point it would pill away and would burn really bad when i used teeth whitening mouthwash. now it does burn but that area feels rough but it looks about normal now. What is it and is it gone?

2) I also found two small cuts in the back of mouth on my bottom gum. I have used mouthwash, saltwater, and even put salt on it for last few days.

I am worried i have some STD and want to know am i over reacting on these things?

[scottma]

Seeing an oral pathologist or oral medicine specialist is advised.

[Happy100767]

well the cuts healed up after two days of using warm salt water. the white shot is gone but it is a lighter call then the rest of my mouth. i just think it took a long time for that to heal