Post-Herpetic Neuralgia (PHN)
Post-herpetic neuralgia is the most common long-term complication of shingles, but many haven't heard of it.
PHN occurs when nerve-damage caused by shingles continues to send pain signals even after the rash has disappeared. People suffering from PHN might experience:
- Burning pain
- Stabbing or electric shock-like sensations
- Extreme sensitivity to touch
- Persistent itching or numbness
- Sleep disturbance
- Reduced quality of life (e.g. trouble socialising, restrictions with wearing certain clothing due to skin sensitivity)
The CDC states that around 10-18% of people who develop shingles go on to experience PHN, with the risk increasing significantly with age.4
PHN can persist for months and sometimes over a year after the shingles rash has resolved.5 Some patients will require ongoing pain management and specialist treatment to manage the symptoms.
Eye complications
If shingles affects the eye, it can lead to:
- Reduced vision
- Permanant sight loss
- Ongoing eye inflammation
If you have the shingles virus and it's affecting your eye health, you should seek urgent medical treatment.
Hearing and facial nerve problems
Shingles affecting the facial nerves or ear health can cause:
- Hearing loss
- Balance issues
- Facial weakness
These complications can have a lasting impact on quality of life.
Neurological complications
Although it's more uncommon, shingles can lead to issues with brain health, such as:
- Brain inflammation (encephalitis
- Serious neurological complications
- Hospital admission
These risks are higher in older adults and immunocompromised patients.