Herpes simplex is a common recurrent viral infection caused by the herpes simplex virus. The two closely related but distinct viruses that cause herpes simplex infections are herpes simplex 1 (HSV-1) and herpes simplex 2 (HSV-2). HSV-1 is commonly associated with infections around the oral mucosa and is the cause of herpes labialis, often referred to as a fever blister or cold sore. HSV-2 infections are usually acquired sexually. Genital herpes is a sexually transmitted disease with the highest prevalence among adolescents and young adults. Knowledge of viral activity, disease management, and community resources will assist the school nurse in developing and implementing strategies to prevent and manage this chronic disease. (Contains 4 tables.)