Hi Jackie, I too am glad (but sorry) that you had reason to find us.
My Mom had small cell LC and had concurrent chemo and radiation. Her rad onc gave her Carafate at the beginning to prevent esophagous burning. Ditto to above post not to wait for help when experiencing esophageal pain. When she did start to experience some discomfort, he prescribed Lidocaine swish and swallow that she used for a long time. She had alot of fatigue with the radiation.
You should check out GRACE. It is a website by a thoracic oncologist who is wonderful! Dr.West will answer your questions and many issues have already been discussed and you can review those posts. The link is www.cancergrace.org.
As far as the cold goes, I was also my Mom's sole caregiver and like you got a nasty cold while taking care of her. Except with us, she was taking chemo and had very low white counts at the time. I HAD to be near her to change dressings on her skin burns from the radiation (that's rare, but if it happens to your Mom, PM me and I'll give you some tips). I wore a mask when that close and washed the heck out of my hands any other time. Also used Clorox wipes EVERYWHERE. She did not catch my cold.
Best of luck to you both, we all understand here. I know it is a scary time.
Hugs,
Leslie