S1013: Validation of Cancer Questionnaire for Skin Toxicities in Patients With Colorectal Cancer or Lung Cancer Receiving Cetuximab, Panitumumab, or Erlotinib Hydrochloride

RATIONALE: Questionnaires that patients can use to assess skin toxicities related to treatment may help identify the intermediate-and long-term effects of cetuximab, panitumumab, or erlotinib hydrochloride. PURPOSE: This trial studies the validation of a cancer questionnaire for skin toxicities in patients with colorectal or lung cancer receiving cetuximab, panitumumab, or erlotinib hydrochloride.