My Father met with a severe accident 7 months back. He is a neuro patient.He is progressing well right now, regained conscious level.For ejecting out cough doctors placed Tracheostomy tube for ejecting out cough.This tube had been remove two months back but that hole is still not covered. There was a normal dressing going on till now but 10 days back strapping started. My query is how long generally it takes for the tracheostomy hole to get covered and if it doesn't get cover up till 3 months is there any surgical procedure required? How severe is that surgery and What is the process involved? Awaiting for the response.