Immunity k drug should refer to pabolizumab, the side effects of pabolizumab are fever, rash, cough, diarrhea, general weakness, dyspnea and musculoskeletal aches and pains. Pabolizumab is an anti-tumor drug that is used to treat melanoma, esophageal cancer, non-small cell lung cancer, squamous cell carcinoma of the head and neck, and colorectal cancer. It should be noted that the use of this product is prohibited for those who are allergic to the active ingredients and excipients of this product, and patients may experience side effects such as fever, rash, cough, diarrhea, general weakness, dyspnea, and musculoskeletal aches and pains after use. Pabolizumab contains ingredients such as L-histidine, sucrose, polysorbate 80 and water for injection. Papolizumab must be used under the guidance of a doctor experienced in oncology treatment. When patients develop fever and other uncomfortable symptoms after using Paborizumab, they should go to the hospital in time and be treated under the guidance of the doctor.