In medical terms, head and neck cancer refers to a group of cancers that develop in the mouth, throat, larynx, nose, sinuses or salivary glands. In India it accounts for nearly 30% of all cancers and 60% to 80% of the patients are diagnosed at the advanced stage of the disease. In about 75% cases, head and neck cancer is caused due to consumption of alcohol or tobacco. The condition is often curable, if it is diagnosed well in time and treatment usually includes a combination of chemotherapy, radiation therapy and targeted therapy.