Hello, I am so sorry about your 4th cancer. My husband Joe, had a submandibular neck dissection April 28. They removed a ping pong size tumor and lymph nodes down to collar bone. Tumor was wrapped in nerve and around jaw bone so they cut a bit out and clipped a nerve. He was pretty rough the first week. His smile is crooked and eating was tough. His had to get fluid drained 2 times in 10 days and wore a jaw bra. We kept the wound cleaned twice a day and used ointment on the scar. Three weeks out he looks good, crooked smile, can’t whistle but glad to have tumor gone. Hope this helps. Also slept propped up first week. It’s a journey.