My husband started with Erbitux because of poor kidney performance but he fell into the 8% of people who develop mouth and lip sores. It was so bad he looked like he lost a boxing match, including the red eyes. He was switched to Carboplatin and so far (1 treatment) has had no side effects. Meanwhile his face is healing from the Erbitux. He is receiving daily IVs to help his kidneys flush out the platinum.