Caffeine is a vasodilator. It is found in OTC migraine medicatiom. Regular advil and red bull are great to push out headaches. Hydration only occurs when salt is present to pull the water into your organs, otherwise you are drinking water just to piss. Anything brined/pickled isbgoid because of the salt content. Also banans are full of potassium too. Making sure your blood sugar is regulated is important. Stay away from sugar and cured meat(salami, pepperoni, ham, etc).