The dietary requirements for postherpetic neuralgia are more prescriptive in Chinese medicine, while Western medicine suggests avoiding spicy, stimulating and other foods that may induce increased pain or are not beneficial to the recovery of the disease. Herpes zoster is a disease that is easily triggered after the immune system has been weakened, so it requires adequate nutrition and avoiding spicy and irritating foods. No matter which disease you suffer from, you should pay attention to the contraindications of drug and food pairing when taking medication. Try to avoid drinking alcohol, coffee and strong tea during medication that may affect the efficacy of the medication or food that will interact with the medication, which may cause patients to suffer from heartburn, chest tightness or dizziness. The diet should be light, with more fresh fruits and vegetables. The choice of protein should be based on high quality protein, such as fresh fish and shrimp, especially those from the river, and more eggs and refined meat.