My husband, 76 yrs of age, had carotid surgery on his right artery about 3 months ago. He had a 80% blockage. After his neck was healed, his right side of the neck has been numb. From the area behind the ear through down to his jaw is still numb, we did not know it was to be for so long. He has an appointment with his surgeon in a few weeks and when I saw this on computer, I wanted to ask your opinion of the reason of the numbness still is there. Thank you for your thoughts on this.