Halakha Yoel 2:15: Mishneh Torah, Fasts

And on these three fasts, all of the people are forbidden to engage in work during the day; but they are permitted at night. They are forbidden to bathe the whole body with hot water; but it is permitted [to bathe] one's face, his hands and his feet. Hence we lock up the bathhouses. They are forbidden to smear [with oil]; but it is permissible if it is to remove filth. They are forbidden to have marital relations, and to wear (leather) shoes in the city; but it is permissible to wear leather shoes on the road. And they pray in the synagogues, cry out and supplicate — like the other fasts.