Botox isn't something that you want to get on a whim while on your honeymoon. You should do extensive research on the procedure and interview lots of technicians before choosing to undergo Botox. Because the substance, a protein called botulinum toxin, (it's the same bacteria that causes food poisoning) is administered via a shot and paralyzes the muscle it's injected into, you don't want to leave any room for error. Along with irritation at the injection site, you can experience bruising, swelling, nausea, pain and a severely droopy eyelid (if you received an injection in that area). The cosmetic side effects can take seven to 10 days to go away, which is just long enough to ruin your honeymoon.