Thank you for your response Liz.
He went to the ER today with fever. I think he has now experienced everything (all side effects of treatment). The doc says that his tumor is breaking up faster than usual and that is why he's so sick so soon.

Caregiver to father,Frank -Tonsil SCC spread to base of tongue 2 lymph, T2N2M0 stage 4a, IMRT 35x, Erbitux 8x-stopped after 5 due to thrush infection and strp infection in PEG,diag Aug 07 tx concluded Nov 8 07 PEG issues Inpatient Oct 8th-Nov 8th.