The patient's medical history in combination with the appearance of the rash will usually be sufficient for making a diagnosis. If necessary, a scrape from the blisters can help identify the virus. A blood sample can also be used to confirm the initial diagnosis. Shingles is rarely serious. In around 90 per cent of patients, the attack normally subsides within a month after the appearance of the first symptoms.
Most people only have one or two attacks.
Elderly people in particular may continue to feel intense pain, even after the attack seems to have subsided. Keep the rash uncovered Try not to scratch. Use calamine lotion to ease the irritation Use simple analgesics such as aspirin or paracetamol to relieve pain. Although anti-viral drugs can be used, they must be started as soon as possible when the burning sensation begins. Once the rash has been present for more than 48 hours, treatment will be of reduced value.