On the flip side i was on Singulair for about a year and i felt nothing different i never sneezed, never had a cold, or a runny nose. My mom found out that some kids had signs of suicide from Singulair so she instantly took me off of it and since then i have been miserable ever since. My doctors have put me on other allergy medicines, but none of them work with my runny nose and only take away the sneezing... even nose sprays don't work. I actually wish that i was still on singulair it never gave me any side effects and it's the only thing that works with my asthma.