One side quest, "A Good Scrub," in *Kingdom Come: Deliverance 2* unlocks a series of bathhouse-related tasks, culminating in a search for a flea-infested item. Here's how to find it for Betty.
Speak to the innkeeper in Kuttenberg about work. This leads you to Betty's bathhouse (southeast Kuttenberg). Accept her offer to find Matsek in Grund. Convince the reluctant Matsek to bring three girls to work at the bathhouse.
After bringing the girls, help Betty advertise the bathhouse. Shout her spiel at the grain market, horse market, vintners’ street, and merchants’ street (during the day).
Clean the bathhouse before the alderman's inspection. Failure to do so quickly will shut down the bathhouse, preventing you from starting "Ill Repute."
After a successful inspection, speak to Betty again. To help her outmaneuver a rival bathhouse, you'll need to get Councillor Naaz to leave the competition. Speak to Meaty Mary, Katcha, and Little Lida to learn his preferences.
Obtain chamomile brew and add it to the wine cask on the rival bathhouse's second floor. Getting Lida to reveal the councillor's fondness for fragrant oils requires giving her a noblewoman's dress (from a tailor). Alternatively, you can steal the oils from a cabinet on the third floor.
Finally, Katcha mentions the bathhouse's former flea problem. The flea-infested item is found in a beggar's camp near Kuttenberg's east gate. Examine the sacks there to find a flea-infested blanket.
Place the fleas in Councillor Naaz’s laundry basket (and a clean basket) in the rival bathhouse. Note: Completing just one of these tasks might be enough to get the councillor to leave.
Kingdom Come: Deliverance 2 is available now on PlayStation, Xbox, and PC.