I dont really know about the slurring jordan robin only had a small part of his tongue removed and he wasnt slurring post op he talks like someone who has had a long session in the dentist and still has a numb mouth.I do know the nerve to his lip was damaged in the operation and although the droop is very slight maybe his lip cant move to form the sounds properly.As to the tightening,just think about a simple cut.As it heals the edges draw together and a scab forms.If you pick the scab off the skin edges open up again.I do know that some people get adhesions post op and actually have to have their scars opened up and tissues released that have stuck to other surfaces.After all when you have a neck dissection they do roll the skin on your face up like a roller blind!!Its major surgery and ALL major surgery runs the risk of side effects let alone surgery that is in an area containing so many delicate nerves and muscles, and our surgeon did pre warn us about all these.