Shingles, also known as herpes zoster, is a viral infection that can occur anywhere on the body in the form of a line of blisters on the torso. Shingles is usually painful and also contagious. The cause of shingles is believed to be the varicella-zoster virus, which also causes chickenpox. Anyone who has had chickenpox also has the varicella-zoster virus, which remains dormant except for its outbreak as shingles.
Someone who has contracted shingles can transmit the virus to anyone who is not immune to chickenpox; that is, anyone who has not had a vaccination. In those people, the virus is spread through direct contact with the shingles. Interestingly, the direct contact results in chickenpox, but not shingles.
Shingles is usually localized around the trunk of the body and presents itself as a very painful red rash accompanied by numbness and/or a tingling sensation.
Other symptoms include:
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