Hi
A brazilian is a landing strip of hair on the pubic bone and all other hair from underneath removed. However I ask my clients what they prefer me to do, as some dont want or cant tolerate complete hair removal.
It can be common to get spots on the area as it gets hot and sweaty there. Also clients will get spots/ingrown hairs as a natural reaction to friction from your underwear and tights etc and does not mean that the therapist is bad. However I would be concerned if she hasnt done a 'true brazilian' as to whether she is qualified to perform this treatment.
As Joe said exfoliate regularly, also wear cotton undies at work and avoid too tight fitting clothes on the few days following your wax. Apply a medicated cream to the area or an ingrown hair prohibitor for a week after your wax.
Regrowth varies between clients. Most of my clients have enough regrowth after 4-5 weeks for another brazilian. The first few times that you wax the area the hair will come back within a week or two but this is down to follicles that have hair waiting to emerge that wont be there when your waxed. Its a natural cycle and can take up to 6 treatments to bring it up to the same cycle.
You know its the therapist if this hair is course when it comes through and if there is a lot of regrowth, rather than a few fine sprouts of hair.
If in doubt try somewhere else.
kate