Lavinia seemed forever to have a cold. Her nose was endlessly running. She’d use a box of tissues, or half a box at least, every day. She went to see a specialist.
The specialist suggested to Lavinia that she had an allergy. Did she have a cat? A dog? A pet cockatoo? Perhaps she should stop eating bread for a while and see what happens. Perhaps she was allergic to milk, or chocolate, or nuts. After tests, none of these were shown to be the cause of Lavinia’s runny nose.
The specialist did further tests. At last the allergy was discovered! Lavinia was allergic to dust created from dried cockroach poop. To be honest, Lavinia’s house was constantly invaded by cockroaches. Lavinia paid to have her home completely debugged and cleaned. It didn’t work. Lavinia still had a constant cold.
No one had noticed the cockroach that had crawled up and lodged itself deep in Lavinia’s sinuses.