I bought a bottle of head cement today. I think it has an applicator installed on the lid.

The metal pin goes through the lid. I can't push it down to get into the cement. Am I supposed to use the end with the red plastic to apply the cement to the fly? I can push the plastic down, exposing a loop of thin wire. Am I supposed to do that, then once I'm done with the cement, raise the plastic until the loop is covered, and wipe off any excess cement? Will I be able to use it again after that?

Or, should I just buy or make a bodkin?