Head and neck cancers are a group of malignancies that develop in the mouth, throat, sinuses or salivary glands. Common symptoms include persistent sore throat, difficulty swallowing, lumps in the neck, hoarseness or unexplained weight loss. Causes often involve tobacco use, alcohol and HPV infection. Early diagnosis is vital, and treatment may include surgery, radiation, chemotherapy... https://www.denvaxindia.com/treatment/head-and-neck-cancers/