【Are There Side Effects from the Flu Vaccine? Expert Answers Your Questions! 】 We all know the importance to get seasonal flu vaccine, but some people still worry about possible side effects. There are even claims that essential oils or coconut oil can help prevent the flu – but do they really work? Let’s hear from Professor LAU Yu Lung, Chair Professor of Paediatrics, School of Clinical Medicine, Department of Paediatrics and Adolescent Medicine of the University of Hong Kong, as he answers som