Head and neck cancer includes cancers of the mouth, nose, sinuses, salivary glands, throat and lymph nodes in the neck. Most begin in the moist tissues that line the mouth, nose and throat. Symptoms may include a sore that does not heal, chronic sore throat, difficulty swallowing, or a sudden change in the hoarseness of the voice. Tobacco and alcohol use significantly increase the risk of head and neck cancers. 85% of these cancers are linked to smoking and smokeless tobacco use. Treatment options include radiation, chemotherapy and surgery. Physical rehabilitation is often necessary.