A 58-year-old woman in Greece swore that her discomfort was due to an allergy, but she never imagined that one day she would end up sneezing live worms nearly 3 centimeters long.

The woman, who after working near sheep spent weeks with a cough and unbearable pain in her sinuses, ended up with an invasion of cattle fly larvae. When examining her, doctors surgically removed 10 larvae and a chrysalis that were happily growing inside her head.

This was supposed to be biologically impossible in humans, but the woman had a deviated septum and created the perfect nest for them.

