Cold and cough of breast cancer patients may be related to the infection of upper respiratory tract, bronchitis, pneumonia and other reasons. Patients need to pay attention to rest, drink more water, eat a diet that is easy to digest, pay attention to ventilation, etc. Some patients also need to use medication. Upper respiratory tract infection is usually caused by bacterial infection and viral infection, and breast cancer patients with poor resistance will trigger cold and cough. Cold and cough occurs when the voice of breast cancer patients is stimulated by microorganisms and infections that cause inflammation of the mucous membrane of the trachea and bronchial tubes. Inflammation or swelling of lung tissue in breast cancer patients can also cause fever and cough. Patients with fever, muscle aches, and headaches can take antipyretic and analgesic medications such as compound aspirin, indomethacin, acetaminophen, and ibuprofen. Cough suppressants, such as dextromethorphan, may be used in moderation for severe coughing, even when it interferes with rest. For patients who are found to have bacterial or viral infection, antibiotic treatment needs to be chosen. When breast cancer patients have colds and coughs, they should go to regular hospitals for diagnosis in time and clarify the causes before treatment.