The side effects of targeted drugs are not the same as the side effects of chemotherapy. Specifically as follows: 1, the common side effects of targeted drugs now are mainly mucosal damage, such as oral mucosa, oral ulcers, intestinal mucosal damage, diarrhea; 2, hypertension, some patients will have high blood pressure after taking targeted drugs; 3, small blood vessel damage in the kidney, which can lead to proteinuria and hematuria, which is more common. Depending on the severity of the side effects, if it is very serious it still needs to be treated. Rash if very serious, local medication can be used, anti-allergy drugs can be used to stop itching, local medication to rub it. If it is very severe. To grade 3, 4 may have to stop the drug.