[Psoriasis. Therapeutic strategy].

The strategy of psoriasis treatment consists first in informing the patients about the too quick renewal of their skin with, as a consequence, the necessity of two phases in the treatment; the clearing phase aimed at suppressing the skin lesions, and a maintenance phase where it is necessary to continue the treatment on an apparently normal skin in order to avoid relapse. For local treatments (tar, anthralin, topical local steroids, mechlorethamine, vitamin D3 derivatives and ointment) and for systemic treatment (UVB, PUVA therapy, retinoids, cyclosporine or methotrexate) it is necessary that the inconvenience of the treatments (due to modifications in everyday life and due to side effects) be less important than the decrease of life quality due to psoriasis. The aim is not to clear psoriasis but to increase the quality of life of the patients. A peculiar strategy of treatment is necessary for some forms of psoriasis like flexural psoriasis, psoriasis arthritis, ungueal psoriasis, palmoplantar psoriasis, pustular psoriasis, psoriatic erythroderma and psoriasis of the child. With the various treatments that we have now, used alone or in association, it is possible to improve the quality of life of nearly all psoriatic patients.