I'm sorry, I forgot to update my post.
It looks like the allergy might be broccoli. I eat a lot of broccoli. It's the vegetable that most restaurants have as a side. Anyways, I didn't eat broccoli for about a week. My mouth/allergic reaction cleared up. I ate broccoli the other night and got a reaction.
I also think I am allergic to the MSM that was in my Glucosamine product. The (S) part of MSM is sulfur. I had an allergic reaction to a prescription antibiotic cream one time. I didn't put two and two together that I might be allergic to MSM. Since I quit taking the Glucosamine with MSM my allergic reactions are not as bad.
I know broccoli is a high sulfur food. I don't know if it's the sulfur in the broccoli or the salicylate.