Hello, welcome . So sorry that you have to join our groups you will get plenty of support and advice form others here who have also been in this situation.
What sort of neck dissection are you having? Radical? Modified? Bilateral, or one side. The type you have will have different effects on recovery.
Kris initially had a Right modified neck dissection of levels 2 - 4.
This was easy. He had no pain and recovery was quick.
6 months later he had a bilateral Radical neck dissection. This involved severing the nerve to the shoulder muscles and he needed a lot of physio therapy to help him regain movement.
I hope all goes well tomorrow . I'm sure your recovery will be fast and pain free.
Others will be along shortly to give you more encouragement and advice.
Christine will prep you up for the chem and rads. Heed all the advice and you will get through this.
Tammy

Caregiver/advocate to Husband Kris age 59@ diagnosis
DX Dec '10 SCC BOT T4aN2bM0 HPV+ve.Cisplatin x3 35 IMRT.
PET 6/11 clear.
R) level 2-4 neck dissection 8/1/11 to remove residual node - necrotic with NED
Feb '12 Ca back.. 3/8/12 total glossectomy/laryngectomy/bilat neck dissection/partial pharyngectomy etc. clear margins. All nodes negative for disease. PEG in.
March 2017 - 5 years disease free. Woohoo!