With figures showing the number of people affected has trebled in the last 30 years - hay fever season spells misery for 13 million people across the UK. And thanks to the milder weather, hay fever season has arrived early meaning we’re already reaching for the tissues and antihistamine tablets. So, how can you get ahead of the upcoming grass pollen season? Professor Adam Fox is here to help keep your symptoms at bay. Broadcast on 28/03/2025 Subscribe to This Morning for more exclusive videos: