Invasive fungal diseases represent an ever changing field within infectology, profoundly affecting daily clinical activities of specialists in haematology. The dynamic development seen in oncohaematology creates novel risk groups of patients, consequently necessitating a re-evaluation of principles in antifungal therapy from time to time. Not even in 2017 may achievements of fungal diagnostics and therapy become a substitute for clinical thinking and adaptation of general guidelines according to local experience. For antifungal management all centres should elaborate appropriate strategies. By creating and operating a multidisciplinary team, decision making can effectively be supported.