Hi Maria, Sorry about not answering your question.  
Yes, but he just gets random break-outs.  He finally went to a dermatologist who prescribed tetracycline.  And, he gets refills of the topical rash medications that his MO prescribed.  One of the side-effects of having the 
Erbitux rash is the potential for getting a skin infection.  Perhaps, he caught something chronic or really stubborn to treat.
I hope things are going well with you!  
Sandy
xoxox