This paper examines how psilocybin, a naturally occurring psychoactive compound from mushrooms, could help cancer patients—especially those with head and neck cancer—who develop severe depression after surgery. Unlike traditional antidepressants that take weeks to work, psilocybin acts within hours, making it potentially ideal for patients needing rapid mental health support following disfiguring surgical procedures. However, while psilocybin is legal for medical or research use in several countries like Australia and Portugal, it remains restricted in Poland and many other places, creating legal barriers to its clinical implementation.