What will cause shingles disease

Incidence of shingles before the first partial sense of pain, or a mild fever, fatigue, before the body can no symptoms first appear red spot trouble, then cluster of papules, herpes Hill immediately into a blister, blister-wall tension, blister ,7-8-week flush days after the blisters dry scar, healing after a temporary leave pigmentation, the group of normal skin blisters between the nearby lymph nodes.
Rash often along the side of the band arranged in the distribution of peripheral neuropathy, there is generally no more than the central line of the body, found in the trigeminal nerve or intercostal nerve, lumbosacral nerve areas, 2 to 4 weeks duration, the more who are immune for life, not the general recurrence , (Low immunity are exceptions).
One of the characteristics of this disease neuralgia, pain can occur in the pre-eruptive or rash associated with the existence, the older, more severe pain. Old lesions in patients with intractable pain subsided after left up to several months.
As the immune status, violation of different nerve, following several special type of herpes zoster.
1, fruste shingles: only occurred in erythema, papules, rather than the formation of blisters, which subsided on its own.
2, the blood type of herpes zoster: for the content of the blood blister.
3, gangrene-zoster: blister center of necrosis, was brown scar, scab for ulcers, after more scars.
4, the Pan-onset herpes zoster: virus spread through blood, body fat, pan-chicken pox-like rash, accompanied by high fever, lung, brain, and other systemic symptoms of poisoning, serious illness can be fatal.
5, herpes zoster eye: the cornea involved, Pokui blisters to form ulcerative keratitis, the more scar the cornea and left after the blind, or even severe cases, the whole eye inflammation.
6, herpes zoster ear: knee ganglion virus, the effects of the facial nerve and the auditory nerve sensory nerve fibers, so that the external ear canal blisters appear, facial paralysis, and inner ear dysfunction (tinnitus, earache) as the Ramsay-Hunt syndrome.
7, visceral zoster: the virus from invading the spinal cord ganglion parasympathetic and sympathetic nerve fibers of the internal organs, causing gastrointestinal tract and urinary tract symptoms, the virus from the spinal cord before and after the invasion and root up the central nervous system, the performance of the meninges Yan.