Burning pain, tingling, or aching with a band-shaped rash on the
left or right side of the chest, abdomen, or face and scalp may mean that you
have a viral infection called
shingles (herpes zoster). This infection is caused by
the reactivation of the
chicken pox virus in the body years after the person
has had chicken pox. The virus usually affects the large nerves that spread
outward from the spine or the nerves of the scalp and face.
The pain can start days or weeks before the rash appears. The rash
will first form blisters, then scab over, and finally clear up over a few
weeks. See a picture of a
shingles
rash
. The rash can be in a band, a strip, or a small area.
No one knows what makes the virus active again. Shingles is more
common in older adults and people who have weakened immune systems, but it can
affect anyone who has had chicken pox.
Contact with the herpes blisters can cause chicken pox in a person
who has not had chickenpox or the chicken pox vaccine. Since shingles is caused
by the reactivation of the chicken pox virus, you do not get shingles from
exposure to shingles.
If you suspect you have shingles, you may need to call your health
professional to confirm the diagnosis and talk about medicine that can limit
the pain and rash. Medicines are most effective if started within the first 2
days of the start of the rash.