Treat tulip fire: A change of location makes sense. As the name suggests, this disease can be classified as dramatic because it attacks the flowers and also contaminates the soil.
Tulip fire is a gray mold pathogen (Botrytis tulipae) for which, according to Schloesserland Sachsen, there is no approved antidote. You can starve the fungus by not growing tulips in the once infected soil for several years in a row. All tulip remains, including bulbs, should be removed after flowering.