I have to replace some ceiling tiles because of water damage. can anyone tell me an easier way of removing the dried adhesive of the tile off the drywall other than scraping it ? if there is, I would like to hear about it. thanks

I have some wet ceiling drywall from a leak and need some advice on the best way to repair and avoid mold. Here's the situation: I discovered a leaky radiator in an upstairs bedroom that had gone unnoticed for a couple days while out of town (discovered by stepping on the soaking wet carpet! water's off now). I lifted a corner of the carpet and saw that the pad was soaked as well as the nail strips. The ceiling downstairs, that had once been smooth and seamless, now has (or had) a bulging visible seam all the way to the edge of the wall. At the wall, the damage extends about a foot on either side. The ceiling is 3/8" drywall covering the original plaster and lathe - drywall screwed into some 1x2 strips nailed perpendicular to joists, so there is a little space between drywall and plaster. What I've done so far: I removed the carpet and pads (wet like a sponge) and took out the plywood underlayment that was soaked. I can see where the water went between the plywood seams and through the floor boards. I opened up a section of the floor boards where wettest and can see the lathe and plaster below are soaked. In the ceiling downstairs, I cut around the bulge in the seam and peeled away a paint layer. The tape is still in. Joint compound was wet, but now drying. Right now I've got a large fan blowing into the hole in the floor. I'm considering removing the wet plaster and lathe from above, they aren't visible anyway, covered by drwyall, and there is a space as I mentioned. Then just keeping the fan going plus run a dehumidifier for a couple of days. Do you think the drywall is ok to leave up? It was soaked, but looks sound. How about avoiding mold? Any other ideas? Thanks