Conversation: The conversation between human and AI assistant.
[|Human|] Hello. I broken my jaw several years ago and had to have 2 plates put in my jaw. Ever since surgery, the sides of my jaw close to my chin have been numb. About a year ago, I started to develop a rash on both sides of my chin where it is numb. The right side is worse than the left. It is a red, blotchy rash that sometimes flakes. Is this common, due to the nerve damage from surgery?
[|AI|]  Hello. Thanks for asking from Chat Doctor. I can understand your concern. The numbness over jaw near chin is most probably due to nerve damage. The mandibular nerve of trigeminal nerve supplies this area. Branch of it has got cut while you were operated. This sensory branch is present in skin layer, so nerve can be cut very easily. As so much time has passed, and it has not recovered its function, it must have been permanently severed. You should take precaution at numb area while using very hot or cold water, sharp object like razor to prevent painless burn or cut. Now coming to your complaint of rash, it could be : Fungal infection: Chemical reaction or allergic fashion should consult dermatologist and show it to him. He will treat it after confirming diagnosis. Meanwhile, you should avoid scratching it, rubbing it. Keep it moist if there is Chat Doctor.  Hope it will help you. Thanks. Take care.