Herpes zoster tests are as follows: 1. Blood tests: to see if the total number of white blood cells and the lymphocyte fraction are reduced. If there is a decrease, it indicates a tendency for viral infection. 2. T-cell subsets test: to see if there is a decrease in cellular and humoral immune function. If it decreases, it can be confirmed from the side that the body is poorer and causes viral infection. 3.Laboratory test for trace elements: If it decreases, it also indicates that the body is poorer. 4.Laboratory test for liver and kidney function: Before taking medicine or taking medicine for a period of time, it is necessary to see whether the liver and kidney function of the body is normal. If normal, the drug can be used. If it is not normal, you need to adjust the liver and kidney function first, carry out liver protection treatment as well as kidney protection treatment, and then carry out antiviral treatment as the best policy when it is normal. Therefore, all the methods of examination are executed around the treatment, so only if the examination is correct can we actively treat shingles.