Nasal cancer is not contagious when eating together. Nasal cancer refers to malignant tumors in the nose, and its development is related to carcinogenic substances in the environment, presence of radiation exposure, local long-term chronic inflammatory stimulation, malignant transformation of benign tumors and other factors. However, nasal cancer is not clinically found to be contagious and will not spread through direct contact or close contact, so you can eat normally with nasal cancer patients. Early stage of nasal cancer has no obvious specific clinical features, and the nasal symptoms will be similar to benign lesions in nasal cavity and sinus. With the development of the disease, the cancer cells will invade to the bone wall of sinus, neighboring tissues and organs, and all kinds of symptoms such as eye, nerves and oral cavity will appear. Nasal cancer needs to go to the hospital in time, and doctors will take into account the patient’s specific situation and make a comprehensive treatment plan, and the treatment includes surgery, radiation therapy, chemotherapy and so on.