To describe the natural history of a condition or disease. To describe the natural history of a condition or disease. To determine effectiveness or cost effectiveness of treatments/services and/or health care products. To measure or monitor safety and harm. To measure quality of care.
According to the NMSS, attacks or flare-ups of symptoms only qualify as exacerbations if: 1  they occur at least 30 days from an earlier flare-up. 2  symptoms last for 24 hours or longer.
How long do Herpes outbreaks last? The duration of the initial outbreak is different males and females. For males, it is usually about up to two weeks, while for females, it is usually for about three weeks. There is no specific pattern as to when recurrent outbreaks will happen.