The moulds then release spores, which can cause allergic reactions.Īnd if you think you’re safe with a fake tree, you’re wrong. The trees can collect mould on their trunks and needles, and the ones that have been stored for a while will have collected not only mould, but also dust. Approximately 35% of people in the UK and US suffer from an increase in hayfever like symptoms at Christmas, with real trees causing the most problems.ĭubbed the ‘Christmas Tree Syndrome’, the moulds grow on the trees naturally, but your home provides it with the perfect conditions for it to flourish and swiftly increase. ’Tis the season to be jolly, unless you suffer from allergies caused by the different moulds found in Christmas trees.