Keloid on neck under ear. Now attached to ear causing numbing type sensation in area of attachment and ear itself.

I have a keloid that have many treatments has started to flatten. Unfortunately, as it regressed it also spread. It is now attached to the base of my ear (where the neck and ear meet). The actual scar doesn't bother me as much as the strange sensations i get at the connection as well as the outer and even upper parts of my ear. Are these nerves damaged? Is the scar growing again (why would I have the same feeling in the scar as I do a perfectly normal ear?). I've had my most success with cryo.