Hi, Morgan
my husband recently completed radiation therapy + cetuximab. He did get the rash, but it was managable with the right topicals (Eucerine Aquaphor worked for him) and the oral antibiotic Minocycline. You have to stay on top of it, though, and religiously to your skin care regimen.

The heuristic about one week of recovery for each week on the table seems to be subject to some variation. The end of radiation and the week or so thereafter was pretty wretched for my husband, but then the improvement began. He cut back to a single vicodin at night so he could safely drive to work HIMSELF a couple of weeks after the radiation was complete. He is stubborn. In terms of physical stamina, he still has a ways to go - but its coming.