What Causes Shingles?

What causes shingles? This itchy, extremely painful rash is a viral infection caused by the same virus that leads to chickenpox, varicella-zoster. Only people who have had chickenpox can develop shingles.

If I've had chickenpox, when am I at risk for shingles?
The varicella-zoster virus never goes away completely, even after all signs of chickenpox have disappeared. The virus lays dormant until it is triggered. The virus then travels along nerve paths to the skin.

No one knows exactly what the causes the virus to reactivate. However, shingles are more likely to occur in people who are over 50 years old or have weakened immune systems.

Is this condition contagious?
Interestingly, shingles itself is not technically communicable. You can't give someone else shingles. However, the virus varicella-zoster can still be active. A person who comes into contact with open shingles rashes can develop chickenpox if the person never had chickenpox earlier in life.

How can I tell if I have shingles?
Chances are, you won't be able to miss the signs. Shingles is a rash that usually occurs on one side of the body. The rash looks like small, transparent blisters. Eventually, the blisters pop, become crusty and form scabs. It can take several weeks before the rash goes away completely, although the skin in the affected area may be discolored.

While shingles can go away on its own, it's always a good idea to consult your physician if you think you have this condition. Treatment varies according to the severity of the infection. For example, if your shingles are mild, your doctor may suggest that you purchase pain relief, antihistamines and anti-itch lotions over the counter. However, if your infection is more severe, you might get prescribed pain killers and antiviral drugs.

While shingles is not life-threatening, untreated shingles can lead to complications. These complications can range from getting a bacterial infection to losing vision if the rash is centered near or in the eye.