Update!

After nearly 48 hours not consuming 1 bit of Vitamin C, I am sitting at my PC just before bedtime, and my mouth is barely burning.

To put it into perspective, at this time of night, my mouth would feel like a raging wild fire. It's a dull roar right now. It's there, but it's much improved.

Even the roof of my mouth, where the normal 'bumps' that are on the palate felt as if they were 'swollen' have decreased in size.

This may very well be simply Vitamin C allergy after all. I almost forgot to take my regular Neurontin/Amitriptyline that I take at bedtime. That's the reduction I have felt in the pain factor thus far.

So this may not be PN or MS related after all! But now the question, how do I deal with avoiding Vitamin C? I can't. It's essential for the body!