Postherpetic neuralgia

Shingles is caused by the varicella-zoster virus, which usually lurks in the neurons of the posterior root of the spinal cord. As long as patients with shingles are actively treated, the virus in the body and the virus that senses peripheral nerves can be quickly cleared in vitro without sequelae. Otherwise, sequelae may be formed. Occurred after herpes zoster virus infection, 10% of patients have pain for more than one month. Without timely treatment or improper treatment, the pain can still exist after the herpes disappears, and in some cases the pain even exceeds decades. Neuralgia is the main feature of shingles. It is caused by the neuropathic invasion of nerve endings of the shingles virus, which can occur before or accompanied by a rash.