This is a question that I addressed for a person who had numbness after a browlift by another doctor. The old technique which required an incision above the eyebrows will cause a lot of numbness in the forehead and scalp area. This approach goes directly through these larger nerves to cause this numbness. To get the feeling back your nerves have to grow over all of the areas and sometimes this doesn’t come back fully. So this could be a permanent thing. Nerve grafting could be a possibility but would be a significant procedure and the results are variable. This option is a complicated approach. Time and waiting can eventually help to allow the nerves to grow back.