Health aide symptoms and conditions

My 8 year old son began using Advair this year after a bout of wheezing sent us to Urgent care. When he was finally officially diagnosed with Asthma this fall, our GP gave us Advair again. My son did great as far as asthma and breathing - didn't need his rescue inhaler once. Unfortunately he gained 8 pounds in 3 weeks and his face and stomach began to look extremely puffy. He also had 3 nosebleeds in quick succession, one when he slept which was a much larger nosebleed than he'd ever had before. I immediately discontinued his use of Advair when I went online and looked at the side effects. Unfortunately I had to talk to the nurses at my clinic several times to explain to them that I was CERTAIN an 8 lb weight gain was not normal and that I was no longer giving this medication to my son, no matter what our GP said. It seems that the clinical trials didn't show weight gain as a significant symptom, but later reporting by doctors has shown it. Doctors don't seem to have this information!