Yes, Erbitux Injection is worth it in the treatment of head and neck cancer. It is also used in the treatment of rectum and colon cancer. Its generic name is Cetuximab is a man-made protein that binds the cancer cells. As a result, the immune system will destroy it and get removed from your body. This injection has several side effects such as dry skin, itching in the injection area, rash, swelling fingers and toenails, hair loss, headache, burning eye, etc.