Hi smjubo,
You can do a web search on Erbitux and get the side effects from the manufacturer.
For myself, I took Eribitux weekly for 7 total treatments, concurrent with Cisplatin and radiation therapy. The significant side effect for me was a horrendous case of pimples - all over my chest, upper back, and face.
The pimples were resolved with oral antibiotics and steroids, which worked quickly and very effectively (I also used a topical antibiotic at first, which I later gave up on, since I didn't think it was very effective).
Anyway, during the treatment I had a lot of other side effects, some of which may have been worsened by the Erbitux - but I'll never know since I was taking on so much (e.g., radiation, Cisplatin, Erbitux, daily Ethyol shots, codeine, Zofran).
Best wishes,
Chris