My nanan had Progressive MS and she never had any problems whatsoever with the local anaesthetics although I know no 2 people are the same with this illness. Just make sure that the Anaethetist/Doctor (sp?) knows what he/she is doing and is aware of your MS.

Try not to panic too much (I know it's easier said than done) but I am sure you will do just fine and I wish you the very best of luck with your procedure and hope it helps you!!