But it took him 4.5 months to finish that treatment and now he is having a hard time with the chemoradiation. There are times he would say he's had enough. My son is actually in an Asian country and the MD's are saying it does not matter whether the ca is HPV based, the treatment is still for SCC. The second MD also said that the first chemo was too long and treatment has been delayed. Thanks for your encouraging words, will make sure I send it to him and maybe change his mind before he says no more to cisplatin. I am going to tell him about the carboplatin, too.