Oxaliplatin in Treating Patients With Advanced Head and Neck Cancer

head and neck cancer, metastatic squamous neck cancer with occult primary squamous cell carcinoma, stage iii squamous cell carcinoma of the lip and oral cavity, stage iv squamous cell carcinoma of the lip and oral cavity, recurrent squamous cell carcinoma of the lip and oral cavity, stage iii squamous cell carcinoma of the oropharynx, stage iv squamous cell carcinoma of the oropharynx, recurrent squamous cell carcinoma of the oropharynx, stage iii squamous cell carcinoma of the nasopharynx, stage iv squamous cell carcinoma of the nasopharynx, recurrent squamous cell carcinoma of the nasopharynx, stage iii squamous cell carcinoma of the hypopharynx