Herpes Zoster
- Herpes zoster, also known as shingles, is a disease caused by the varicella-zoster virus, which is also responsible for causing chickenpox.
- The virus can live in the nervous system for a long time after your chickenpox goes away, and it can reactivate as shingles.
- The disease is characterized by a red skin rash that causes burning and pain. The rash shows up as a stripe of blisters, either on the torso, face, or neck.
- The blisters go away after 2 to 3 weeks, and they are highly unlikely to reappear.
- According to statistics, 1 in 3 people in the US has had herpes zoster at some point in their lives.
- Let’s look at this medical condition in detail:
Causes
- Herpes zoster is caused by the varicella-zoster virus that stays in the body after chickenpox goes away.
- The virus can reactivate after several years.
- The cause behind this reactivation is not clear. It is usually attributed to a weakened immune system due to age, and herpes zoster is more common as you get older.
- Typical risk factors for the condition are:
- Aging
- Emotional stress
- Weakened immune system
- Undergoing treatment for cancer
- Recovering after a major surgery
Symptoms
- The initial symptoms of herpes zoster are pain and burning. The burning sensation occurs on one side of the body and is followed by the development of a red rash.
- The rashes have these characteristics:
- Itching
- Red patches
- Occur on the face and ears
- Fluid-filled blisters that can break easily
- It can wrap around to the torso from the spine
- Other, less-likely symptoms of the condition are:
- Chills
- Fever
- Headache
- Muscle weakness
- Fatigue
- Rarer, and more serious, complications of the condition include:
- Intense pain in one ear or loss of hearing in it. This happens when a rash reaches that ear, also causing dizziness and loss of balance.
- Rash that involves the eye or causes intense pain in the eye.
- Bacterial infections, that are indicated by your skin becoming warm, red, and swollen.
Diagnosis
- A doctor can diagnose herpes zoster by simply taking a look at the rash and blisters and conducting a physical examination of them.
- They will also require a medical history.
- If the physical examination proves inconclusive, which is rare, a fluid sample from the rash may be required.
- This is done by wiping the rash with a swab and sending the liquid to a laboratory to confirm whether the virus is present or not.
- There is no treatment for the condition, but you need medication to avoid further complications.
- Medication can also make the condition easier to deal with and can help it go away quickly.
- The condition usually goes away after a week, and you need to go to your doctor again if it doesn’t go away after 10 days.