<prompt> Answer this question truthfullyWhat is a complication that can occur after recovery from facial nerve palsy due to abnormal nerve regeneration and what is the cause of this complication?  <response>: <reason> A complication that can occur after recovery from facial nerve palsy due to abnormal nerve regeneration is Crocodile tear syndrome that occurs during eating, due to a rewiring from the salivary gland to tear glands. 