Stuck ball Joints

...sorry,my english isn't the best

...hey there I don't think this here is the correctly place for my question but I hope noone would mind
I'm working on my first custom figure now,the base is an dc direct with ball joint head.my problem:the body and neck are already painted but I had to disconnect the head again because of paint rub(bad mistake after the finished hairsculpting ) is there any way to put it back on without ruin the hair or the painting again? I've used citadel paint.thanks for every answer

Probably the joints are stuck with paint or something

All I can suggest is try to work a thin screwdriver between the discs and the softer plastic that sandwiches them, see if you can pry them apart a little to break whatever bond is keeping them together.

No blow dryer... I tried HOT water, and it helped a little bit but still sticks real bad.

I hear a blow dryer can work on that sort of thing.