Zoster (Shingles)


Zostavax Vaccination

Shingles are caused by Varicella-zoster virus (Chickenpox). After getting chickenpox infection, the virus will stay and remain dormant in your body nerve cells. If the virus becomes active again, it can cause a painful viral infection called shingles. The virus will become active when we get old or when our immune systems are weak. Therefore, people who used to have chickenpox may have chance to recur as shingles, and the strength of onset is 14 times stronger than chickenpox.

The Influence of Shingles

After the virus attacks, it will travel along the spinal nerves to the surface of the connected skin, forming a red rash with blisters. The virus will not only appear in the common parts like back or waist, but also may occur in the head or face.

Shingles can last up to 30 days. One-fourth of patients will have varying degrees of complications, including postherpetic neuralgia or neuralgia. Even after the rash is cured, neuropathic pain can last for months or years.


Zostavax is an attenuated zoster virus vaccine, with protective efficacy of about 70%, and the earlier the injection, the protection effect is stronger. Unidose is enough. Yet, a small number of people will still suffer from shingles after vaccination, but the vaccine can reduce the acute and chronic pain caused by it, and also shorten the onset time and reduce the risk of neuralgia.

Recommended for vaccination Not suitable for vaccination Side Effects
Aged above 50Pregnant women, women who planned for pregnancy in the future three months, currently have shingles or under related treatmentsome people may suffer from headache and uncomfort on injection part