Herpes voster, commonly known as shingles, is a viral infection that is related to chickenpox, and can actually develop after having chickenpox. The virus that causes chickenpox can lie dormant for years and eventually cause shingles many years after the initial outbreak.

The initial shingles symptoms are usually very nonspecific and include things like headache, fever and general body aches and pains, which can often lead to it being misdiagnosed. However, eventually those symptoms will be accompanied by a rash that can often be very painful. Often the affected area can become very painful to the touch. Sufferers of shingles have often described sensations like tingling, aching and even sharp shooting pains. The rash generally starts out small and usually appears first on the torso, though it can also show up on other parts of the body. Though unsightly and painful, generally the rash is relatively harmless, except in the rare occasion that it occurs near or on the eyes or ears. The virus spreading to the eye can possibly cause keratitis and optic nerve palsies, which can lead to ocular inflammation, pain and even loss of vision. In the ear, the symptoms can include hearing loss and vertigo.

The shingles virus is contagious. However, if you have already contracted chickenpox as a child you cannot contract shingles as an adult. If you have never had chickenpox, your first contact with shingles will result in the development of chickenpox, as opposed to shingles. As an adult, if you have had chickenpox, though you cannot catch shingles you could possibly develop it later in life, as stated above. The shingles virus is only contagious if there are new and healing blisters. If the blisters are old and already crusted over, it is no longer contagious. The herpes zoster virus has been around since the time of smallpox, however at the time there was no way to distinguish between smallpox and ergotism. Eventually in the 1700s, a man named William Herberden found a way to differentiate between the herpes zoster virus and smallpox. Soon after, associations between that virus and chickenpox were discovered.

Up until fairly recent history, shingles was thought of to be a very non-threatening disease. It was during the 1940s and 1950s that the more serious symptoms were discovered to be more problematic than initially thought. Medical professionals believe that most adults will contract shingles at least once during their lives, with the potential of developing it on their own after that.