Yes, get some antihistamine if you want to hang out with her.

It would seem so, yes. Does she make it leak liquid too? That's a sure sign of allergy.

Yes, don't let her touch it.

You seem to have a serious condition. It may be best to amputate.

It may be a reaction to the nail polish.

Try a man then...

Oh, it's absolutely a problem... But don't panic!! It's easy,, add some Chili powder to yours..
You remember nail polish remover ? That can be used too.. give to your GF..

The best way to test this is by seeing how other men's penises react. If they are swell it's an issue with her hand, not your penis.

Hmm. Send her over; let me check.

Don't worry, age will fix your issue.

Thanks