Pickup screw head stripped. Tips for removal?

Yeah, photos would have been helpful.

If it's P or J pickup, you might be able to push the pickup downward (because they rest on foam rubber) which will expose the top section of the screw and then use some mini vise grips or pliers to twist it out.

Another option if it's a P or J pickup, push the pickup downward, use some long sharp wire snips/pliers and cut off the head of the screw. This will allow you to remove the whole pickup and then you can easily use mini vise grips or pliers to remove the screw.

Kind of difficult to explain this with words.

I think this is what I did, 6 years ago LOL