Psoriasis and Eczema are manifestation of allergy like condition, in two different forms, though it is a little rare. But the treatment is not very different. Psoriasis is a condition in which there is exfoliation of the surface of the skin even when it is useful. This extra growth of skin cells underneath pushes up the old cells and it appears as a dry, scurfy, scaly appearance.
Eczema is a allergy like condition in which there is itching and oozing from the affected area.
Both the problems could be hereditary too.
Homeopathic Medicine has good remedies to see that these changes in skin are taken care of with simple remedies like Ars. alb, Sulph, Caladium, Sarsaparilla, Sulph, etc. It can see that the lesions subside and the eczematous condition does not come back. Psoriasis can be pushed into remission too.