Ruth, You are not alone. Your treatment experience will be uniquely yours. No two are the same. Prepare yourself for difficult times and symptoms. Have salivary agents at the ready, and pain meds. Have ways of treating radiation burned skin - I had a bunch of burn problems, many do not. Taking your kids to the rad center might be a good idea, but don't risk 'freaking' them with the mask, or the smells or the big machinery.
Get your husband onto this website. Get others in your support group (sisters??) to read things here. Information is POWER. You and they will want it. Ask specific questions. Someone here will try to respond to it - probably many. There are not stupid questions about cancer or treatment. Its complicated, its difficult, it can be very painful, it is extremely dehydrating and generally no fun. BUT, the beast can be beaten.
Get others involved. Get others educated. Prepare yourself for battle. Fight hard. We are with you. Be strong. Tom