Taking targeted drugs have side effects, can be based on the type and degree of side effects, comprehensive treatment. Dietary regulation of diarrhea when necessary drug treatment, skin rash need local drug application, liver and kidney function damage need to protect the liver and kidneys and other drug treatment, if necessary, stop using targeted therapy. Most of the targeted drugs have certain side effects, the more common is the digestive reaction caused by diarrhea, skin rash, visceral damage, etc., for mild most patients are able to tolerate and gradually adapt to, if the patient appears to have severe adverse reactions need to be dealt with in a timely manner. For example, bleeding skin rash needs timely local pressure to stop bleeding, diarrhea needs rehydration, stop diarrhea and other active treatment, the emergence of liver and kidney function damage requires the use of hepatoprotective and renal drugs. Serious adverse reactions should pay attention to whether the patient’s life is endangered, as well as to consider whether the future treatment program needs to be adjusted to avoid causing serious damage. Therefore, the side effects of eating targeted drugs should be timely consultation, under the guidance of the doctor reasonable treatment, so as not to delay the condition.