In other words, even if you have no symptoms, you should never stop taking this medicine, unless otherwise prescribed by your doctor.
Singulair has not been proven effective as treatment of itchy eyes, itchy nose, sneezing
and runny nose. If these symptoms continue to be problems for you, you might want to try an antihistamine, which can be purchased over the counter.
There is one other use for Singulair, and that is for people who have excercise induced asthma.