Dear Mayo Clinic: My teenage son is looking forward to heading back to school this fall, especially after months of distance learning due to COVID-19. Sitting in front of the computer for hours was not easy for him. He says he’s not worried about wearing a mask to school or sitting behind a plastic barrier. My 7-year-old daughter, though, is becoming more and more nervous as school gets closer. She is fearful of getting sick and cries whenever we talk about returning to school. Do you have any advice for how I can ease the transition for them?