Arachnopneumonia
an inflammatory condition of the lung affecting primarily the microscopic air sacs known as alveoli.12 It is caused by Spider/s crawling into the lung while subject is asleep thus causing inflammation. Treatment often includes dangling a fly in front subjects of open mouth to entice the spider to crawl out of the lung thus relieving the irritation in the lung.
After a long night of sleeping with his mouth open, he came down with a bad case of Arachnopneumonia and could not find a fly to releave his symptons.