TimesOnline reports that hay fever drugs often cost students an exam grade.

In a study funded by the drug firm Shering-Plough, researchers found that students who have hay fever symptoms are 40% more likely to drop an exam grade – and 70% more likely if they're taking an allergy medication that makes them drowsy.

‘Hay fever peaks between the ages of 14 and 24. This is precisely the time when many people are doing life-changing exams and we need to take it seriously,’ says lead researcher Samantha Walker.

Thankfully, non-drowsy allergy medications (like Claritin, Zyrtec, and Allegra) are now available.

Additionally, you can avoid taking so much medication by controlling the allergens in your environment. Avoid the allergens that make you sick, and you won't need medicine! See How to Allergy-Proof Your Bedroom for simple allergy relief tips.