Civic EG

Just trying to see if anyone has any tips on how to fix warped quarters.
I welded on new panels from fixmyrust but seemed to have heated the welded area too much while grinding. Now the welding area seems to be receding.
I have heard it can be banged out with a hammer and dolly but it is quite a hard place to reach from inside.
Any ideas would help!

how badly is it warped?

how bad is it?
Get a picture so we can see

Mine warped some as well when I repaired my 1/4's. The metal can get too hot real fast. I pushed out what I could and then skim coated with some high quality filler. (I used USC, not the cheap stuff from autozone etc.)

As long as you're not trying to do a bare steel hot rod look, it's acceptable to use some filler for a repair like this.