The mouth ulcers on my tongue probably due to my allergy to preserved nutmeg?

On 15 August 2010, Sunday, Latte brought home some preserved nutmeg from Malaysia after her Getting trip. I developed a few very small mouth ulcers the bottom of my tongue near the tip of the tongue. Today these ulcers are still there.

I have not gotten any mouth ulcers for a long time since I abstain from preserved fruits.

So I guess my latest mouth ulcers might probably due the added preservatives/chemicals or bacteria in the preserved nutmeg.

What do you think?