If you're strictly a headache hangover kind of person, then good for you! But chances are that your hangover includes not only head pain, but also nausea, fatigue, dehydration and maybe even some dizziness. In that case, drugs like acetaminophen and aspirin will not get you very far. Acetaminophen has been known to cause liver damage, which you may already have enough of if you're trying to cure a hangover. And aspirin? Well it could potentially increase the chance of bleeding in your stomach and gastrointestinal tract. So unless you've got just a killer headache, you're probably better off drinking lots of water and getting some rest.