How does snake gall infect people?

Snake gall sores, medically known as herpes zoster, are caused by reactivation of varicella zoster virus latent in nerve ganglia and manifest as clustered blisters on unilateral areas distributed by cranial nerves or nerve sensory branches, often accompanied by significant neuralgia. Herpes zoster is not generally transmitted to herpes zoster and may be transmitted to children with varicella. The activation of varicella zoster virus latent in ganglia is the basis of the disease. The latent virus is activated, descends along the sensory nerve axis, reaches the skin dominated by the nerve and replicates to produce blisters. At the same time, peripheral and central nerves are affected to form pain sensitization and neuropathic pain.