The side quest, "A Good Scrub," in *Kingdom Come: Deliverance 2* unlocks a series of bathhouse-related tasks, one of which requires finding a flea-infested item for Betty. Here's how to locate it:
To begin, accept "A Good Scrub" from Betty, the bathhouse owner in Kuttenberg (southeast section of the city). This involves recruiting girls for the bathhouse from Matsek in Grund. After successfully recruiting them, help Betty promote the bathhouse by shouting its advertisement in the grain market, horse market, vintners’ street, and merchants’ street (ensure it's daytime). Finally, clean the bathhouse before the alderman's inspection to avoid closure.
Following a successful inspection, speak to Betty again. She'll reveal the council's decision on the city's main bathhouse hinges on getting a competing bathhouse's councillor to leave. To achieve this, discover the councillor's dislikes from Meaty Mary, Katcha, and Little Lida. You'll need chamomile brew (to add to the wine cask on the second floor of the competing bathhouse) and possibly a noblewoman's dress (to get information from Lida). Alternatively, you can steal fragrant oils from a cabinet on the third floor.
Katcha mentions the bathhouse's past flea infestation. To find the flea-infested item, head to Kuttenberg's east gate. There, you'll discover a beggar camp; search their sacks for a flea-infested blanket.
Screenshot by The EscapistReturn to the competing bathhouse and discreetly place the fleas in Councillor Naaz's laundry basket (and potentially the clean laundry basket). Note that completing this task is optional; successfully completing just one of the three tasks will suffice to force the councillor's departure. This allows you to finish "Ill Repute" and progress to other quests, such as "Axe from the Lake."
*Kingdom Come: Deliverance 2* is available now on PlayStation, Xbox, and PC.