Besides the skin, other organs, such as the liver or brain, may also be affected (causing hepatitis or encephalitis, respectively), making the condition potentially lethal. : 380

Pathophysiology
The causative agent for shingles is the varicella zoster virus (VZV) – a double-stranded DNA virus related to the herpes simplex virus. Most individuals are infected with this virus as children which causes an episode of chickenpox. The immune system eventually eliminates the virus from most locations, but it remains dormant (or latent) in the ganglia adjacent to the spinal cord (called the dorsal root ganglion) or the trigeminal ganglion in the base of the skull.Shingles occurs only in people who have been previously infected with VZV; although it can occur at any age, approximately half of the cases in the United States occur in those aged 50 years or older. Shingles can recur. In contrast to the frequent recurrence of herpes simplex symptoms, repeated attacks of shingles are unusual. It is extremely rare for a person to have more than three recurrences.The disease results from virus particles in a single sensory ganglion switching from their latent phase to their active phase. Due to difficulties in studying VZV reactivation directly in humans (leading to reliance on small-animal models), its latency is less well understood than that of the herpes simplex virus. Virus-specific proteins continue to be made by the infected cells during the latent period, so true latency, as opposed to chronic, low-level, active infection, has not been proven to occur in VZV infections.
Celecoxib/tramadol sold under the brand name Seglentis, is a fixed-dose combination of the anti-inflammatory celecoxib and the opioid tramadol used for the management and treatment of pain.Developed by Spanish pharmaceutical company Esteve, it was approved for medical use in the United States in October 2021. References
External links
"Celecoxib". Drug Information Portal. U.S. National Library of Medicine. "Tramadol hydrochloride". Drug Information Portal. U.S. National Library of Medicine. Clinical trial number NCT03108482 for "Co-crystal E-58425 vs Tramadol and Celecoxib for Moderate to Severe Acute Pain After Bunionectomy. Phase III Clinical Trial." at ClinicalTrials.gov