(HealthDayNews) -- Has this happened to you? You wake up in the morning feeling really sick and cancel all your plans. Then, by afternoon, you feel fine and start thinking that maybe you weren't really sick at all.
Don't feel foolish. According to the Journal of Allergy and Clinical Immunology, that's how most colds work.
In a study sponsored by the University of Texas-Houston School of Public Health, researchers found that 70 percent of people with colds have most of their symptoms in the morning. Even allergy symptoms -- like sneezing and a blocked or runny nose -- are worse in the morning.
So take a long-acting antihistamine at bedtime; you'll have high levels of antihistamine in the morning, when you need them most.
