The present invention relates to a pharmaceutical composition for treating and preventing dermatitis composed of natural products,A pharmaceutical composition composed of three kinds of natural products acts on a broad indication corresponding to various causes of dermatitis to treat and prevent dermatitis,To maximize the stability and the treatment effect of the dermatitis,A pharmaceutical composition for treatment and prevention of dermatitis composed of conventional synthetic chemicals has dependency and toxicity on a pharmaceutical composition including immune system side effects so that a pharmaceutical composition composed of a pure natural substance not containing a synthetic chemical is used as a dermatitis As well as treating and preventing dependence and addiction to pharmaceutical compositions, including immune system side effects,If you have to treat and prevent dermatitis by acting on a broad indication that responds to a variety of causes of dermatitis,It is difficult to expect the stability and persistence of dermatitis treatment and preventive effect as well as the troubles of separately administering the three kinds of preparations of each single synthetic chemical ingredient, and it is difficult to expect the stability and persistence of the dermatitis treatment, To solve the problem,A pharmaceutical composition for the treatment and prevention of dermatitis composed of conventional synthetic chemicals is intended to solve the problem of dependency and addictiveness to pharmaceutical compositions including immune system side effects.That is, the present invention relates to antiinflammatory and sedative agents, whitening and moisturizing agents, antibacterial and antibiotic agents for treating and preventing dermatitis,Among three natural products constituting one pharmaceutical composition, Artemisiae Argyi Folium is Artemisia argyi Lev. et Vant., Mugwort Artemisia princeps Pampanini or Saguscum Artemisia montana Pampani (Asteraceae Compositae) le