It's a common myth that hay fever is something that always develops in childhood. Around 1 in 5 people with this condition develop hay fever symptoms for the first time when they're over 20. So what might cause us to develop hay fever and how can we manage our symptoms?
This is a companion discussion topic for the original article at https://patient.info/news-and-features/why-do-some-adults-suddenly-develop-hay-fever