Roof Repaired... Now what?
During Superstorm Sandy our house received a new complimentary shower in the bathroom - that is, a leak. It was along the edge of the bathroom, in a 3 sided rectangular pattern including the window frame, inward about 12 inches and across about 12 inches - a slow drip along this area. We immediately called and had a roofer come out, who replaced some lost shingles, hammered down roof nail pops, repaired flashing, etc. We've now had our first rain after that, and it seems that worked fine.
So now we have the internal damage to deal with (I wanted to wait until I was certain the outer damage was fixed first). The roofer believes that the external leak was right above the internal leak. I have had a dehumidifier running in the bathroom to try to make sure the area is dry and to prevent mold.
Can I just sand down and retouch the area with paint? Or should I pull off that part of the ceiling drywall to open up the otherwise inaccessible area over it to allow that to better dry and then repair it with new drywall? As I have never done any drywall work, should I get a contractor who does internal stuff (the one I had come out before only did exterior roofing) come and take care of it? I prefer to do easy things around the house, but also want to make sure things are done right and am not sure what "right" is in this case...
Thanks in advance for all your advice!