Abstract: The invention relates to "A special formulation"- an oil for external application- Emulika Oil PS for the Control of certain skin diseases like Psoriasis, Ichthyosis, Leucoderma and Eczema for a better treatment. The new formulation consists of well known herbs. In the said skin diseases along with a base oil of therapeutic importance. To this oil 20 % Emu Oil is added, which has no comedogencity (clogging of skin pores), and which penetrates deep into the tissues taking the drug along with it, where they are required.