Hello Cindy, I know that this is a very scary time for you both and I am sorry that this has happened to you. Radiation and chemo can be very tough, but , it is also doable. Christine should be along shortly to tell you the radiation basics of high calorie, high fluid intake and keep swallowing. So, I will leave that to her.
Keep coming back here for support. Ask any questions you need answering, someone will have had the same or a similar experience and will have good advice for you.
You will both 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!