Damp area on Plasterboard

In my bathroom I have an area of plasterboard near the end of the bath where damp has got in and has cased the paper layer to lift and blister.

Any ideas for a fix? The source of the problem has been fixed.

Reply to
DerbyBorn
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I'd try plenty of thin pva, if it works you can then fill the damage. It works on real plaster, not tried it on pb.

NT

Reply to
tabbypurr

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