Hello N Y,
Welcome to OCF. I am sorry to hear that your mom is going through this.
I can only say for my self that I was told that the chemo and radiation were necessary to help prevent it from spreading.
I started with stage one & had part of tongue removed. No chemo and radiation at that time. Then year later had lymph node in neck infected stage 4. That is when they did the neck surgery, followed by radiation and chemo. I am now 2 1/2 years cancer free. I am check by a head and neck specialist every six months.
As far as which is better
Erbitux VS Cisplatin. I do not really know. I had the Cisplatin. I am sure some one here may be able to answer that question.
Take care,:)
Diane