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With resolution of the herpes zoster eruption, pain that continues for three months or more is defined as postherpetic neuralgia. Pain is variable, from discomfort to very severe, and may be described as burning, stabbing, or gnawing. Signs: [citation needed] Area of previous herpes zoster may show evidence of cutaneous scarring.
Lidocaine patches, marketed as Lidoderm, relieve the peripheral pain of shingles (herpes zoster). It became commonly used off-label, for pain from acute injuries and chronic pain, although limited by its requirement to be removed for 12 hours, after 12 hours of use.
Lidocaine is an antiarrhythmic medication of the class Ib type. [8] This means it works by blocking sodium channels thus decreasing the rate of contractions of the heart. [11] [8] When injected near nerves, the nerves cannot conduct signals to or from the brain. [9] Lidocaine was discovered in 1946 and went on sale in 1948. [12]
Herpes simplex, often known simply as herpes, is a viral infection caused by the herpes simplex virus. [5] Herpes infections are categorized by the area of the body that is infected. The two major types of herpes are oral herpes and genital herpes , though other forms also exist.
Herpes labialis does not refer to the labia of the vulva, though the origin of the word is the same. The colloquial terms for this condition ("cold sore" and "fever blister") come from the fact that herpes labialis is often triggered by fever, for example, as may occur during an upper respiratory tract infection (i.e. a cold). [12]
Genital herpes is a herpes infection of the genitals caused by the herpes simplex virus (HSV). [1] Most people either have no or mild symptoms and thus do not know they are infected. [ 1 ] When symptoms do occur, they typically include small blisters that break open to form painful ulcers . [ 1 ]
Shingles, also known as herpes zoster or zona, [6] is a viral disease characterized by a painful skin rash with blisters in a localized area. [ 2 ] [ 7 ] Typically the rash occurs in a single, wide mark either on the left or right side of the body or face. [ 1 ]
An adhesive bandage, also called a sticking plaster, sticky plaster, medical plaster, or simply plaster in British English, is a small medical dressing used for injuries not serious enough to require a full-size bandage.