What is the definition or description of: post-herpetic neuralgia?

Post herpes: Residual pain neuro deficits from shingles type exacerbation. It can be extremely debilitating to a patient. Seek consultation from a neurologist or pain physician. Neuroleptic medications may help.

Herpes Zoster : Infections can cause shingles, an eruption along the path of a nerve over face, trunk, or even limbs. The immediate process is associated with seering pain and localized numbness over the nerve distribution. In some patients, a persistent agonizing painful sensation can develop, and plaque the patient indefinitely. Meds, such as Lyrica (pregabalin) may work wonders.

Nerve pain : Post hermetic neuralgia is nerve pain (burning-like, lancinating, toothache type of pain) usually after a viral infection after zoster or shingles.