You can take cold medicine after taking ositinib, and you need to take it under the supervision of your physician. Oshitinib, is mainly indicated for the treatment of adult patients with locally advanced or metastatic non-small cell lung cancer who have disease progression on or after treatment with epidermal growth factor receptor (EGFR) or tyrosine kinase inhibitors and have been tested and confirmed to have the presence of the EGFRT790M mutation. It is possible to take cold and flu medicines under the supervision of your doctor while taking the medicine. During taking Ossitinib, pay attention to the adverse reactions, such as diarrhea, nausea, skin rash and hematological toxicity, and review the blood routine, liver and kidney function regularly.