Thanks Loulou. I believe this same person was the one who told me about this Neurotalk forum when we were both on the Arthritis Care forum. I will just have to wait and see how I get on with the Dundee rheumy I think. Many thanks.

Well it feels as if they are wind burned yes and I do lick a lot - especially since my lip biopsy. But my gums are the most annoying/ distressing because they feel as if they are swollen and my top teeth and nostrils feel as if I'm wearing an upper jaw brace that's just been tightened at the front. It's very weird! Sometimes it feels as if I've eaten a mouth full of stinging nettles - same for hands and feet - but more hands and finger tips. When I have flares it feels like the whole of my peripheries and mouth has been dipped in sulphuric acid but most of the time it's just space dust/ paprika! Hope this helps?

persistent mouth pain, gum and lip issues might signal a deficiency of biotin:

Biotin Deficiency Can Be Fatal | Suzy Cohen, RPh

dose would be 7 to 10mg a day. Already the MS community is discussing new information for high dose biotin for themselves, and their doses are even much higher.