So very sorry to hear of your wife's unfortunate diagnosis. Please know that there will be many here who will pray for her and hope the best for her, and for you.
You said: "… If any of you know of an equivalent forum for oral squamous cell cancer, please kindly let me know."
I don't see an oral cancer forum here on Healingwell, but if you google
oral squamous cell chat rooms
the resulting display lists a number of what look like possibly useful forums that deal with this area. In particular:
Oral Cancer Foundation—Forums:
/oralcancerfoundation.org/forum/ and
Mouth Cancer Foundation Online Support Group
rdoc.org.uk/eve/(and see the "Introduce Yourself" link)"
look like possibilities.
These are just a couple of examples of what may be out there, but perhaps you would like to look at these as a start, and see if either of them would be helpful.
Again, prayers and hopes for your wife.