Each of the 38 remedies discovered by Dr Bach is directed at a particular characteristic or emotional state. To select the remedies you need you only need to think about the sort of person you are and the way you are feeling. Then you take the remedies you need.
here is his website:
Bach Flower Remedies (Bach Flower Essences)
Perelandra flower remedies founded by Michelle Wright
you can read about her fascinating account with the nature spirits
and learn how to make your own flower essences!
Home Page @ Perelandra