http://www.medications.com/effect/view/25479 Daughter was sick for 6 weeks with what started as a virus . Dr.'s said virus needed to run it's course and allergies were also bad so they put her on Singulair. When she wasn't improving they said she had mono. No improvement, still mono. Still not improvi Sat, 08 Dec 2007 02:44:49 -0500 http://www.medications.com/effect/view/25479?item=3321 Oh my I feel so bad for you, yet so relieved that your daughter is off this med. It is so scary. I too could not understand what was happening to my 4 year old. The doctor's thougth I was crazy. I kept telling my family I knew in my gut, that "mommy instin http://www.medications.com/effect/view/25479?item=3321