Herpes zoster is caused by varicella-zoster virus infection, related blood tests can be selected from routine blood, blood biochemistry, myocardial enzyme profile, etc., as follows: 1. routine blood: after routine blood tests, patients with herpes zoster generally have lowered white blood cells and elevated lymphocytes; 2. blood biochemistry: tests for T-cell subsets, cellular immunity and humoral immunity indicators, mostly showing a downward trend; 3. AIDS Antibody test: HIV test, which can check whether there is a decrease in immunity due to AIDS and herpes zoster; 4, tumor markers: this test can provide a certain basis when the cause is unknown and tumor factors are suspected, such as ovarian cancer, prostate cancer and other factors that lead to a decrease in immunity; 5, myocardial enzyme spectrum: myocardial enzyme spectrum can check whether there are changes in the heart muscle, coronary heart disease and infarction; 6, blood glucose Measurement: to check whether there is diabetes, because patients with diabetes can suffer from shingles and do not recover easily. After herpes zoster is confirmed, treatment should be actively carried out, usually within 48-72 hours after the onset of the disease to start antiviral treatment, commonly used drugs are acyclovir, valacyclovir, famciclovir. Clinically, nonsteroidal anti-inflammatory drugs are also available to relieve the severe neuralgia of shingles.