Poor kid. Pneumonia is awful. My son has had it twice too now, and it really was a good two to three weeks before he was completely himself. This last time, (last year he was 5) was the worst. Same sort of things, fever for days on end, coughing until he threw up, listless, no appetite for a good week, just awful coughing jags. Somewhere in the one week mark I took him in, because he just seemed like he was getting worse to me, while my younger daughter who also had it, seemed to being doing much better by comparison. They switched anti biotics for him, and he seemed a lot better in 24 hours, and by 72 hours was actuall playing and eating again. They put him on Omnicef. What they figured happened was that beccause he had so many ear infections as a baby and yound toddler, he built an immunity to the first anti biotic they gave him, which I beleive was Ceftin. They also reccomended that he drink a lot of things like Gatorade, (I guess corn syrup is actually good in situations like these) to help thin the secretions, warm compressses on the chest several times a day, sitting in the steam of a shower, and vicks on the soles of his feet as well as the usual places. Oh also, a warm air humidifier. I personally liked the Vicks Plug in one with the fan, felt safer to me and really helped the kids alot. Hope this helps, and I hope your daughter feels better soon.