After a long, cold, wet winter, trees and flowers all seem to be blooming at once, and that means a sudden, big burst of all different types of pollen at the same time. Some experts are even predicting a “pollen vortex.”

However, because the pollen season started later, it’s likely to be shorter, Joseph Leija, M.D., an allergist with the Loyola University Health System’s Gottleib Memorial Hospital in Chicago, told HealthDay.