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.
1 Outbreak. 2  Recurrent outbreaks of herpes simplex virus (HSV) feature most of the same symptoms at the same sites as the primary attack, but they tend to be milder and briefer. 3  After blisters erupt, they typically heal in 6 â 10 days.ymptoms. Symptoms of the herpes virus vary depending on whether the outbreak is initial or recurrent. The primary outbreak is usually worse than recurrent ones and it is during this primary flare-up that you should immediately examine the herpes outbreak and which products are the most reputable.