They will be divided into four groups with treatments assigned by chance. Group A will receive a combination of the drugs Singulair and Claritin. Group B will just be given Singulair. Group C will solely receive Claritin. Group D will be given the placebo.
All tablets are identical in appearance.
Some people, particularly those who receive the placebo, may not physically feel able to complete the study. As they reach for a tissue to wipe that runny nose or those itchy eyes, participants also will grab some cash if they follow certain guidelines. West End Ave. Participants must also record their nose and eye symptoms daily on an allergy diary card. The cards are turned in at each visit.