The Chinese word **疱疹** (pàozhěn), meaning "herpes" or a blister-like rash, is formed through semantic combination: the character **疱** denotes "blister" or "pustule," derived from the radical 疒 (illness) and the phonetic component 包 (bāo), while **疹** means "rash" or "skin eruption," also using the illness radical 疒 with the phonetic 㐱 (zhěn). Together, the two characters create a precise medical term that visually and conceptually describes a blistering skin eruption, exemplifying how Chinese compounds often combine meaningful components to specify a particular condition.