<s>[INST] I have ms, several months ago I started to feel a slight tingling on the left side of my face. Within a few weeks from half of my lip, toung, jaw and inside my mouth I had a shocking sensation. It is very painful. Hard to talk, eat, drink, or just to silk quietly. [/INST] Hi, Welcome to Chat Doctor .com I am Chat Doctor. Mariano Into Bruno Mascaras. I have gone through your query with diligence and would like you to know that I am here to help you. The Painful Tingling Sensation on the Left Side of the face, and shocking sensation over lip, tongue, inside mouth is suggestive of a condition called Trigeminal Neuralgia You need to undergo further evaluation for this can be either due to MS or due to an aberrant vascular loop or some other reasonsTreatment depends on the cause of this neuralgia hence we need to first find the cause Please consult a Neurosurgeon in Your Area Hope you found the answer helpful. If you need any clarification / have doubts / have additional questions / have follow-up questions, then please do not hesitate in asking again. I will be happy to answer your questions. In the future, for continuity of care, I encourage you to contact me directly in Chat Doctor at http://bit.ly/ask </s>