http://www.medications.com/effect/view/31124 Update.... well my 6yr old son came off Singulair on 3-29. His sinuses drained finally (only waiting past year for that to happen) 9 days after coming off. His sinus problems have been gradually going away. He is now only taking claritin and sudafed when ab Thu, 05 Jun 2008 10:12:36 -0400 http://www.medications.com/effect/view/31124?item=8930 this may sound crazy....but my daughter who was not on singulair kept getting tonsilitus with little help from antibiotics,we were talking about having her tonsils out when we did a mono test and low and behold it was mono,a month in bed it was gone gl to http://www.medications.com/effect/view/31124?item=8930 Thu, 05 Jun 2008 10:31:28 -0400 http://www.medications.com/effect/view/31124?item=8931 I had them test him for mono because he kept getting white throat and red throat etc.. They were doing routine blood work for well check so I asked them to check that as well and it came back negative. http://www.medications.com/effect/view/31124?item=8931 Thu, 05 Jun 2008 14:06:13 -0400 http://www.medications.com/effect/view/31124?item=8941 I would have no way of knowing what organism is causing your problem so I am just going to give an example. Micro-organism such as pseudomonas are very good at protecting themselves. They can produce a slime like substance that protects them from nitric http://www.medications.com/effect/view/31124?item=8941