My 21 mo. old son has been on Singulair along with Zyrtec & Pulmi...

My 21 mo. old son has been on Singulair along with Zyrtec & Pulmicort daily for a year for severe allergies & asthma. The Singulair has done wonders for his asthma, but his mood swings are completely intolerable! He can go from my sweet little angel to devil child in no time! I was thinking that it was from the Pulmicort (being an inhaled steroid). It's almost like a "steroid rage" that he goes through. The little things make him mad. He punches, slaps, throws himself in the floor, all while kicking and screaming! I just happened to do some research this morning on Pulmicort side effects when I stumbled across all of these experiences that are being linked to Singulair instead. I am so thankful that I may have found our problem!!! Pray for us!!! My patience & his treatment!!!