Kevin had this happen with the second round of chemo. Turned out they were cold sores. He has never had them before so we never even thought of it. They gave him a prescription, cannot remember the name now, and they went away quite quickly.
Just a thought.
Kathy

Kathy wife/caregiver to:
Kevin age:53
Dx 7/15/11
HPV16+ SCC Stage IV BOT/R
Non smoker, casual drinker
7/27/11 Cistplatin, taxotere,5FU 2/3week sessions, followed by IMRT 125cgy x 60 (2x daily) w/Erbitux weekly. Last rad 10/26/11. Last Erbitux 10/27/11
PEG placed 9/1/11 Removed 11/8/11
Clear PET 10/12 and 10/13 and ct in 6/14