There is no true cure for a hangover. No pill, supplement, or magic drink will instantly eliminate it. But several strategies can meaningfully reduce symptom severity and speed up your recovery. The most effective approach combines rehydration, sleep, food, and careful use of over-the-counter pain relief, while avoiding a few common mistakes that can make things worse.
A typical hangover lasts about 18 hours from your last drink, or roughly 12 hours from the time you wake up. Knowing that timeline helps set realistic expectations: you’re managing symptoms while your body finishes processing alcohol and its toxic byproducts.
Why You Feel So Bad
When your liver breaks down alcohol, it first converts it into a compound called acetaldehyde, which is highly toxic and classified as a carcinogen. Your body then converts acetaldehyde into a harmless substance called acetate, which eventually becomes water and carbon dioxide. The problem is that after heavy drinking, acetaldehyde builds up faster than your body can clear it. That backlog drives much of the nausea, headache, and general misery you feel the next morning.
Alcohol also triggers inflammatory responses throughout your body, including the release of stress hormones that contribute to fatigue and achiness. It acts as a diuretic, pulling fluid and electrolytes out of your system. And it wreaks havoc on your sleep: while alcohol helps you fall asleep faster, it suppresses deep restorative sleep phases and fragments your sleep in the second half of the night. As alcohol wears off, your nervous system shifts into a state of heightened activation, causing more frequent wake-ups and lighter, less restful sleep overall. That’s why you can sleep eight hours after drinking and still feel exhausted.
Rehydrate With More Than Water
Replacing lost fluids is the single most impactful thing you can do. Water alone helps, but your body absorbs fluid more effectively when it contains some sodium, potassium, and a small amount of sugar. These ingredients activate specific transport proteins in your intestinal lining that pull water into your body faster than plain water can.
Oral rehydration solutions (sold as Pedialyte, Liquid IV, or similar products) are designed around this principle. You don’t need anything fancy. Broth-based soups work well too, since they naturally contain sodium and water. Coconut water is a decent source of potassium. The key is to start drinking fluids as soon as you wake up and keep sipping steadily rather than chugging a large amount at once, which can worsen nausea.
Get More Sleep If You Can
Because alcohol disrupts your sleep architecture so significantly, one of the best things you can do is simply sleep more. The sedative effect of alcohol wears off partway through the night, leaving you in a state of nervous system arousal that causes fragmented, shallow sleep. Your brain misses out on REM sleep early in the night and tries to compensate with a “rebound” later, but by then your sleep quality has already deteriorated.
If your schedule allows it, going back to sleep for a few extra hours gives your body time to finish metabolizing alcohol, restore some of the deep sleep you missed, and reduce the overall duration of your symptoms.
Eat Something, Even If You Don’t Want To
Food won’t absorb alcohol that’s already in your bloodstream, but eating helps stabilize blood sugar, which drops after heavy drinking. Low blood sugar contributes to shakiness, fatigue, and brain fog. Bland, easy-to-digest foods like toast, crackers, bananas, rice, or eggs are good starting points. Eggs contain an amino acid called cysteine that may help your body process acetaldehyde, though the evidence for this is modest. The bigger benefit of eating is simply giving your body fuel to work with during recovery.
Choose Your Pain Reliever Carefully
A headache is often the most disruptive hangover symptom, and over-the-counter pain relievers can help. But which one you choose matters.
Acetaminophen (Tylenol) combined with alcohol can cause serious liver damage. Your liver is already working overtime to process alcohol and its byproducts, and acetaminophen adds a competing metabolic burden that can become genuinely dangerous. Avoid it while you’re hungover.
Ibuprofen (Advil, Motrin) or aspirin are safer options for most people, but both can irritate your stomach lining, which is already inflamed from alcohol. If you tend toward an upset stomach, take ibuprofen with food and stick to the standard dose on the label.
What Doesn’t Work
“Hair of the Dog”
Drinking more alcohol the morning after is one of the oldest hangover “remedies,” and it’s one of the worst. The reason it seems to provide temporary relief is straightforward: it returns you to an intoxicated state, which masks symptoms. It may also temporarily block the metabolism of certain toxic byproducts, postponing rather than preventing the crash. Research shows that hangover severity actually increases in people who drink again the following day compared to those who don’t. Beyond being ineffective, using alcohol to treat hangovers is a strong predictor of developing problem drinking patterns over time.
Supplements and “Hangover Cures”
A major review from King’s College London assessed 21 placebo-controlled trials covering 23 different hangover treatments. The results were discouraging. Twelve substances, including prickly pear and several commercial hangover products, showed no effect compared to a placebo. Only seven substances showed any hint of symptom improvement, including Korean pear juice, red ginseng, clove extract, and certain vitamin combinations, but even those results were classified as low-quality evidence. No supplement had convincing, reproducible proof of working.
This doesn’t mean these products can’t help individual people feel slightly better. But nothing on the market has been shown to reliably cure or significantly shorten a hangover.
Prevention Makes the Biggest Difference
Since there’s no real cure, the most effective strategy is reducing hangover severity before it starts. Two factors matter most beyond the obvious one of drinking less: what you drink and how you pace yourself.
Darker alcoholic beverages contain higher levels of compounds called congeners, which are chemical byproducts of fermentation and aging. Congeners independently worsen hangover symptoms and trigger additional inflammatory responses. The hierarchy is clear: brandy, red wine, and rum have the highest congener levels. Whiskey, white wine, and gin fall in the middle. Vodka and beer have the lowest. For perspective, brandy contains roughly 4,766 milligrams of methanol per liter, while beer contains just 27. More distilled spirits generally mean fewer congeners.
Drinking water between alcoholic drinks slows your overall intake and partially offsets alcohol’s dehydrating effect. Eating a substantial meal before drinking slows alcohol absorption into your bloodstream, giving your liver more time to keep up with processing.
The Realistic Recovery Plan
For most people, hangover duration falls between 14 and 23 hours after the last drink, with an average of about 18 hours. From waking up, you’re typically looking at around 12 hours before you feel fully normal. There’s no shortcut through that window, but you can make it less miserable.
Your best approach: drink fluids with electrolytes starting immediately, eat bland food as soon as your stomach can handle it, take ibuprofen (not acetaminophen) if you have a headache, and sleep as much as possible. Skip the supplements, skip the “hair of the dog,” and accept that time is doing most of the heavy lifting. Your body already knows how to clear the toxins. Your job is to give it the hydration, fuel, and rest it needs to do that work efficiently.