My 4yr Old

my 4yr old was put on symbicort she also takes a nep wen needed and is on allergy med she has never been diagnosed with asthma but has sevear allergies she got a really bad virul cold 3months ago with a really bad cough her doc put her on the symbicort it seemed to help but i started hearing that a child should not be put on that so i looked info up and found out that was true she is sick again and i took her off the symbicort a week ago she has the cough again but this time its a gasping cough i wanted to know if this could have hurt her she only was on it for a month in half i am very worried the doc i just took her to upd her nep to 3 times a day and im not given her the symbicort anymore should i look for any side affect