Thank you very much for the responses. I did see the ENT today. He says what looks like a canker sore is actually skin healing from the biopsy that was taken. He believes the irritation I am feeling is from the biopsy cutting part of a nerve and that it should resolve in some time. He says it all looks good and there is no sore there at this time. I will keep an eye on the spot for sure.

At the very least, I have learned quite a bit about this disease and how to spot/catch it early. Thank you for everyone's kindness and support. I will certainly do my part to share what I have learned here. I will update if anything comes of this.