The present Invention is directed to topical formulations containing pidotimod, or A physiologically acceptable Salt thereof, together with at least a pharmaceutically acceptable excipient, such topical formulations, which are preferably semi solid or liquid, are mainly Nte intended for the treatment of psoriasis and / or atopic dermatitis.La presente invención está dirigida a formulaciones tópicas que contienen pidotimod, o una sal fisiológicamente aceptable del mismo, junto con al menos un excipiente farmacéuticamente aceptable; tales formulaciones tópicas, que son preferentemente semi-sólidas o líquidas, están principalmente destinadas al tratamiento de psoriasis y/o dermatitis atópica.