While women can have mustaches, I'm not sure if they can have beards. If they can, it would only be a result of an unhealthy amount of testosterone in a female body.
The most common method would be to shave. If you're looking for a more permanent method, there are various depilation(hair removal) techniques. It's possible to hit the hair follicles(the pits that...
The easiest way is to do the same as you would normal dandruff. Beard dandruff typically is caused by the same conditions, and many who have beard dandruff also have scalp dandruff. Try a dandruff...