You can earn money not only in a brothel but also in a tavern, when you start the dialogue you should have the choice “Work” and you spend 1 energy and receive 10 silver coins
Is there a specific quest line you have to follow to unlock the ability to work I don't have the option to work in either the brothel or the tavern so I'm stuck making and selling health potions for 5 silver a piece and its taking forever
You need to skip a week until your little fellow traveler wakes up, then talk to the NPC in the brothel and the tavern and then you can continue to work, only come to them with replenished energy