One in three people will develop shingles during their lifetime, according to the Public Health Agency of Canada, but despite this, the disease isn’t widely understood. It’s common, painful and preventable. Here are a few things to know about this disease:
What causes shingles? The disease is caused by the varicella zoster virus — the same one that causes chicken pox — reactivating in the body. Ninety percent of adults have had chickenpox, which means they can get shingles. Reactivation of the virus can happen when the immune system is weakened, which occurs naturally as we age. Stress, certain medications or health conditions can also weaken our immune function, making shingles more likely.
What are the symptoms? Shingles usually shows up as a painful blistering rash that breaks out on the face, chest or abdomen and can last for three to five weeks. Patients often describe the pain associated with shingles as shock-like, burning or aching. This feeling can spread to the underlying nerves, resulting in pain that can make everyday activities and work much more difficult.
What are the long-term effects? Unfortunately, the pain from shingles can sometimes last much longer than the rash itself. The most common complication from the disease is called post-herpetic neuralgia (PHN). This is nerve pain that can set in at the site of the rash, and can last for weeks, months or even years. Some health conditions that increase the risk of shingles, such as asthma and diabetes, can also make PHN more likely.
What can you do? Anti-viral treatment can help ease the symptoms and work best if it’s given within the first 72 hours, but the most effective thing is preventing the disease in the first place. Vaccination is broadly available and can help protect against shingles.
If you’re over the age of 50 or living with a chronic condition, you can speak with your healthcare provider to learn more about your individual risk and prevention options, including vaccination.
— News Canada



