The fastest way to ease a hangover is to rehydrate with an electrolyte-rich drink, eat something to stabilize your blood sugar, and take an anti-inflammatory painkiller if you need one. There’s no instant cure, but these steps target the three main drivers of hangover misery: dehydration, low blood sugar, and inflammation caused by toxic byproducts your liver is still processing.
Your body clears alcohol with a half-life of four to five hours, meaning it takes roughly 25 hours to fully eliminate it after a night of heavy drinking. You can’t speed that up, but you can reduce the symptoms that make those hours miserable.
Why You Feel This Bad
A hangover isn’t just dehydration, though that’s part of it. The main culprit is acetaldehyde, a toxic byproduct your liver produces while breaking down alcohol. Acetaldehyde triggers inflammation throughout your body before eventually being converted into harmless acetic acid and flushed out. That inflammation is what’s behind the headache, nausea, and general feeling of being hit by a truck.
About 40% of East Asian people carry a genetic variant that slows this conversion process, which is why some people experience dramatically worse hangovers than others, even after the same amount of alcohol. On top of that, alcohol suppresses your blood sugar and forces your kidneys to flush out fluid and electrolytes, leaving you dehydrated and running on empty.
Rehydrate With Electrolytes, Not Just Water
Plain water helps, but it doesn’t replace the sodium and potassium your body lost overnight. Electrolyte drinks like Pedialyte contain a precise ratio of sugar and salt that pulls fluid into your bloodstream faster than water alone. Pedialyte has two to three times more electrolytes and about 25 to 50% less sugar than most sports drinks, which matters because excess sugar actually slows fluid absorption and can upset an already sensitive stomach.
If you don’t have Pedialyte on hand, a pinch of salt and a splash of juice in a glass of water gets you closer to the right balance. Coconut water is another decent option since it’s naturally high in potassium. The key is to sip steadily rather than chug, especially if you’re feeling nauseous. Aim to drink at least a few glasses in your first hour of being awake.
Eat Something, Even If You Don’t Want To
Alcohol interferes with your liver’s ability to release stored glucose, which is why you wake up shaky, foggy, and irritable. Eating restores your blood sugar and gives your body fuel to keep processing what’s left of the alcohol.
Start with 15 to 20 grams of fast-acting carbohydrates to bring your blood sugar up quickly: a glass of juice, a piece of toast with honey, or a banana. Once your stomach settles, move to a more substantial meal. Eggs are a popular hangover food for good reason. They’re rich in an amino acid called cysteine, which your body uses to produce one of its key detoxifying compounds. Pair them with toast or potatoes for a mix of protein and carbohydrates that will keep your blood sugar stable for hours rather than minutes.
Avoid greasy, heavy foods if your stomach is already uneasy. They won’t “absorb” the alcohol (that ship sailed hours ago), and they can make nausea worse.
Choose the Right Painkiller
This is where people make a common and potentially dangerous mistake. Acetaminophen (Tylenol) and alcohol are both processed by the liver, and combining them stresses it significantly. Acetaminophen toxicity accounts for nearly half of acute liver failure cases in North America. If you drink regularly or heavily, daily doses above 2,000 mg become risky because chronic alcohol use depletes the liver’s protective stores of a compound called glutathione.
Anti-inflammatory painkillers like ibuprofen (Advil) or naproxen (Aleve) are a better choice for hangover headaches. They directly target the inflammation that acetaldehyde causes, which is the actual source of the pain. The tradeoff is that they’re harder on your stomach and kidneys, so take them with food and water rather than on an empty stomach. If you have a history of stomach ulcers or kidney problems, talk to your doctor about what’s safe for you.
What Actually Speeds Things Up
Beyond the basics of hydration, food, and pain relief, a few other things can shave time off your recovery:
- Light movement. A short walk or gentle stretching increases circulation, which helps your body process metabolites faster. You don’t need a full workout, and pushing too hard while dehydrated can backfire.
- Sleep. Alcohol wrecks your sleep quality even if you were unconscious for eight hours. A nap, if you can manage one after rehydrating and eating, lets your body do its repair work without interference.
- Coffee (carefully). Caffeine can help with the headache and grogginess, but it’s also a diuretic. If you drink coffee, match each cup with an extra glass of water or electrolyte drink so you don’t dig yourself deeper into dehydration.
What Doesn’t Work
“Hair of the dog,” drinking more alcohol the next morning, delays the hangover rather than curing it. You’re simply adding more acetaldehyde to the queue your liver is already working through. The relief is temporary, and the crash is worse.
Activated charcoal supplements are sometimes marketed as hangover preventers, but alcohol is absorbed into the bloodstream far too quickly for charcoal to bind to it in any meaningful way. IV drip clinics will rehydrate you, but they’re expensive and no more effective than drinking electrolytes steadily over a couple of hours.
Prevention Makes the Biggest Difference
The drinks you chose last night play a role in how bad you feel today. Dark liquors like bourbon, brandy, cognac, and red wine contain high levels of congeners, chemical byproducts of fermentation that intensify hangover symptoms. Clear drinks like vodka, gin, light rum, and white wine have significantly fewer congeners. This doesn’t mean clear drinks are hangover-proof, but switching from whiskey to vodka can noticeably reduce next-day severity.
Alternating alcoholic drinks with water throughout the night is the single most effective hangover prevention strategy. Eating a full meal before drinking slows alcohol absorption and gives your liver more time to keep up. And drinking less, obviously, is the only guaranteed way to avoid a hangover entirely. Your liver can only process about one standard drink per hour, so anything beyond that creates a backlog of acetaldehyde that you’ll be paying for the next morning.