08/27/2025
Should I get Shingles vaccine?
(above image from https://www.shingrix.ca/en-ca/index.html)
What is Shingles?
Shingles is caused by the varicella zoster virus, which also causes chicken pox. As one ages and immune defense goes down, the virus remaining in the body from a past chicken pox infection may come out as shingles. The average lifetime risk for shingles is around 30%, most often occurring in people aged 50 or over. As one becomes older, the higher risk for shingles and the longer and severity the pain. The risk for getting shingles before age 85 can be as high as 50%.
Symptoms of Shingles
Shingles causes a painful rash (often across the torso) lasting 7-10 days and usually takes 2-4weeks to completely heal. The main symptom is severe pain, often described as “electrifying” or “burning”. Very rarely, it may cause pneumonia, hearing problems, blindness, meningitis or death. One out of every five patients with shingles may have prolonged nerve pain that persists after the acute infection, called “post-herpetic neuralgia” (PHN). Shingles is not contagious, although exposure to shingles can cause chicken pox in someone who has not had chicken pox or been vaccinated against it. It is important to see your physician or pharmacist as soon as possible, preferably within 48 hours when shingles infection is suspected. Prescription antiviral medication, such as Valacyclovir, can be prescribed to halt the infection. Over the counter analgesic such as Tylenol or Advil often not effective against the post-herpetic neuralgia. If the post-herpetic neuralgia becomes unbearable, doctor can prescribe anti convulsant medications such as Gabapentin for neuralgia pain relief.
Shingles Vaccine (Shingrix)
Shingrix, available since 2018, can achieve an efficacy of more than 90%. It requires 2 injections, with the second shot given within 2-6 months after the first shot. If a vaccinated person still gets shingles, these products also reduce the severity of pain and the risk for PHN.
Possible Reactions After the Vaccine
The shingles vaccine is very safe; some possible reactions include pain, swelling, itching, or rash at the injection site. A small percentage of people may experience low grade fever on the night after receiving the vaccination
People experiencing an acute shingles infection also should not receive the vaccine, as your body will already be providing temporary antibodies against the Shingles virus. Vaccination at this stage will negate the benefit of the vaccine, also the vaccine does not treat shingles. One should wait at least one year before consider Shingles vaccination.
Health Canada recommends all eligible people aged 50 or over to receive this vaccine. Shingles vaccine is non prescription, feel free to book an appointment with us online/by phone/in person. However, if you have third party insurance that may cover Shingrix vaccine, then your insurance may need a prescription from your physician for coverage.
Disclaimer: Crystal Pharmacy and writer did not receive any honorarium for writing this article