Bach original flower essences for naturally occurring nervous tension, MustardMimulus (Mimulus guttatus) is a flower essence for individuals having fear from unknown causes such as illness, death, accidents, pain, the dark, damp, cold, poverty, other people, animals, spiders, public speaking, loss of friends or job, dentistry etc, and is helpful for children who tend to be shy, timid, sensitive, afraid of animals, the dark, etc.