It is necessary to do an allergy test for narcotic drugs. In the experiment, some people will be allergic, but don't worry, if there is, the doctor will deal with it in time, and they will use anti-allergic drugs to eliminate this phenomenon in time. At the same time, you don't have to worry that the quality and variety of drugs have improved now, and patients may not be allergic to all narcotic drugs. Don't be nervous, adjust your mentality, and surgery is very helpful.