Welcome to OCF! Im so glad you have found our forum to help you and your mother. Read both here and on the main OCF pages to educate yourself. Being informed will help you to be a great caregiver and advocate for your mother.
Right now have your mother try to eat all she can and eat all her favorite foods. Depending on her treatments, her eating capabilities can be severely compromised for anywhere from a couple weeks thru several months. So eat everything now! If your mother will do radiation, her daily intake will need to be at least 2500 calories and 48 oz of water. This is necessary every single day so might as well get her started on it now.
She should get a hearing test, a complete blood count including thyroid, a dental exam with any questionable teeth pulled. She will probably need flouride trays made if having radiation (this take weeks).
If she hasnt selected a treatment center, a CCC would be a very good place to get the best treatment. The comprehensive cancer centers will use a team based approach so everyone will be on the same page. I will give you a link for it at the end. If she isnt going to a CCC, at least try to go to one for a second opinion?
You are among friends, almost like an extended family here. Dont worry, we will help you and your mother with everything we can. Best wishes!!!
CCC List