Herpes zoster is a viral skin disease, and humans are the only hosts for the varicella-zoster virus. Therefore, the virus can easily enter the bloodstream through the respiratory tract mucosa, leading to viremia, and consequently causing chickenpox or presenting as a latent infection. The virus can lie dormant for long periods in our ganglia or nerve roots. When the body is stimulated again, leading to a decrease in resistance, the dormant virus can be activated, which may result in herpes zoster.