We recommend performing as much of the chafifah as possible on Friday, at least taking care of some time-intensive things, such as cutting nails, in order to reduce preparation time after the fast. Preparation for the mikveh is not viewed as bathing for pleasure and therefore your usual preparation routine is permitted on Friday (although not on Tisha B'Av itself). Concentrate on preparing and don't spend extra time luxuriating in the bath.

Just before immersion Sunday night, you should shower, prepare your hair, and check yourself well.

There is debate among halachic authorities about married women removing body hair during the three weeks, so it is best to check with your rabbi about this. There is no reason to distinguish laser hair removal from other methods, so if you are removing hair, you may keep the appointment.

Please write back with any further questions.