Go ahead and start looking for the second opinion, if she's dragging her feet. They always seem to leave a window of time between surgery and radiation anyway (so there's healing of the surgical site), so you must have at least that much time to work with.
((hugs)) Wish we could all do more for you.
Tongue lesion, right side
SCC, HPV+, poorly differentiated
T1N0 based on biopsy and scan
Selective neck dissection 8/27/13, clear nodes
12/2/13 follow-up with concerns
12/3/13 biopsy, surgery, cancer returned
1/8/14 Port installed
Chemo and rads
2/14/14 halfway through carboplatin/taxotere and rads
March '14, Tx done, port out w/ complications, PEG out in June
2017: probable trigeminal neuralgia
Fall 2017: HBOT
Jan 18: oral surgery