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Glossary

acyclovir - one of a group of antiviral drugs that may reduced the severity and duration of a shingles attack if given soon after the onset of symptoms.

capsaicin - an active ingredient in hot chili peppers that is used in topical ointments to relieve nerve pain. It appears to work by reducing a chemical substance found at nerve endings and involved in transmitting pain signals to the brain.

carbamazapine - a drug that works both as an anticonvulsant and a pain reliever.

chickenpox - an acute contagious disease usually occurring in children and caused by the varicella-zoster virus.

famcyclovir - an antiviral drug. See acyclovir.

herpes zoster - the medical term for shingles; an infection caused by the varicella-zoster virus (one of the herpesviruses).

herpes simplex - the medical term for a common and usually mild viral disease that causes eruptions of the skin or mucous membrane.

herpesviruses - a large family of viruses that cause a number of related conditions including, but not limited to, oral and genital herpes simplex, varicella (chickenpox), and varicella-zoster (shingles).

immunosuppressed - having a weakened immune system.

latent - hidden, dormant, inactive. The virus that causes chickenpox remains hidden in the body after the initial attack of chickenpox is over. When it becomes reactivated, usually many years later, the virus causes shingles.

lidocaine patch - a new method for treating postherpetic neuralgia in which an adhesive patch containing lidocaine is placed on the skin allowing the drug to be released into the top layers of the skin, reducing pain from the damaged nerves.

neuron—the primary functional cell of the brain and nervous system.

postherpetic neuralgia - a condition characterized by unrelenting pain, caused by damage to the nervous system.

valacyclovir - an antiviral drug. See acyclovir.

varicella-zoster - a virus that causes two distinct diseases, chickenpox and shingles. It is a member of the herpesvirus family. Varicella is Latin for "little pox;" zoster is the Greek word for girdle. Medically, zoster is sometimes used as a synonym for shingles.


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