There is no best way to recover nerves in the late stages of herpes zoster, the condition can be treated with nerve blocks or drugs such as tricyclic antidepressants, antiepileptic drugs, opioid analgesics and nonsteroidal anti-inflammatory drugs. 1. Nerve block: Nerve block can block the vicious cycle of herpes zoster neuralgia, block the conduction pathway of sensory nerves and improve blood circulation. 2. Tricyclic antidepressants: this drug is the first line of current treatment for postherpetic neuralgia, which can not only improve patients’ excessive attention to pain by reducing their depression and anxiety, but also inhibit spinal neurons involved in nociception, thus exerting analgesic effects, such as amitriptyline. 3. Antiepileptic drugs: mainly through the inhibition of the nerve conduction process, blocking nociceptive conduction to treat postherpetic neuralgia. Antiepileptic drugs mainly include carbamazepine, gabapentin, pregabalin and so on. 4. Opioid analgesics and non-steroidal anti-inflammatory drugs: non-steroidal anti-inflammatory drugs used in the treatment of postherpetic neuralgia mainly include aspirin, ibuprofen, etc., whose analgesic effect is clear, but only effective for some patients. Opioid painkillers such as morphine can be used if the pain is severe. If you need to use drugs, it is recommended to use drugs under the guidance of a doctor, do not blindly self-medication to avoid adverse effects.