A study to demonstrate methods of using topical preparations to control chronic skin coditions is described. 25 patients with atopic eczema or psoriasis were followed for an average of 10 months. Both self-assessment using a diary card and clinical assessment were used to evaluate the treatment. The study shows that, when used correctly, topical corticosteroids can provide an effective means of controlling these intractable conditions without producing the side-effects associated with their misuse.