The view of allergen test report data needs to be judged according to the test method. Allergen test report can be divided into: semi-quantitative inspection, qualitative inspection and other different ways. Due to the different methods of examination, the results of the report of the examination data also have certain differences. When a patient undergoes a semi-quantitative test, there is a normal reference value at the back of each item of test data, and if the patient’s test result, exceeds the range of the normal reference value, it means that the patient has an allergic condition. The greater the value, the more severe the allergy may be. When a patient undergoes a qualitative test, the degree of allergy is determined by a + as well as a -. A – indicates a negative test, no allergy. A + indicates a positive, allergic condition.