The fastest way to help a hangover is to rehydrate with an electrolyte drink, eat something, take an anti-inflammatory pain reliever like ibuprofen, and rest. There’s no instant cure, but these steps target the specific biological problems alcohol created in your body: dehydration, inflammation, low blood sugar, and poor sleep. Most hangovers resolve within 24 hours, and the right combination of strategies can shorten that window considerably.
Why You Feel This Bad
A hangover isn’t just “being dehydrated.” Alcohol triggers a measurable immune response. During a hangover, your body produces elevated levels of inflammatory signaling molecules, the same ones your immune system releases when you’re fighting an infection. This inflammatory surge is directly linked to the nausea, headache, fatigue, and diarrhea you’re experiencing. Your body is essentially treating last night’s drinking like a low-grade illness.
On top of that, alcohol suppresses a hormone that tells your kidneys to hold onto water. The result is that you urinate far more than the volume of fluid you took in, flushing out sodium, potassium, and other electrolytes along the way. Alcohol also disrupts how your liver manages blood sugar. It interferes with glucose production, which is why you may feel shaky, weak, or lightheaded the morning after. And your sleep, even if you got a full eight hours, was physiologically worse than normal.
Rehydrate With Electrolytes, Not Just Water
Plain water helps, but it only replaces lost fluid. It doesn’t restore the sodium, potassium, and chloride your body flushed out overnight. In fact, drinking large amounts of plain water can dilute your remaining electrolytes further, which may make you feel worse before you feel better.
An oral rehydration solution or an electrolyte drink is more effective because it contains the right balance of minerals to help your body actually absorb and retain the fluid. Sports drinks, coconut water, or packets of oral rehydration salts all work. If you don’t have any of these on hand, a pinch of salt and a splash of fruit juice in a glass of water is a reasonable substitute. Start sipping as soon as you wake up and keep drinking steadily throughout the day rather than forcing down a large volume at once.
Choose the Right Pain Reliever
For a hangover headache, ibuprofen or aspirin are your best options. Both are anti-inflammatory, which directly addresses the immune response driving your symptoms. There’s even evidence that drugs blocking the inflammatory compounds your body produces during a hangover (called prostaglandins) are effective at reducing headache, nausea, and overall misery.
Avoid acetaminophen (Tylenol) after heavy drinking. Alcohol depletes a protective molecule in your liver called glutathione, and that’s the same molecule your liver needs to safely process acetaminophen. When glutathione stores are low, acetaminophen can become toxic to liver cells. This isn’t a theoretical concern: acetaminophen toxicity accounts for nearly half of acute liver failure cases in North America. If you’re a regular or heavy drinker, this risk is even higher. Stick with ibuprofen, and take it with food to protect your stomach.
Eat Something, Even If You Don’t Want To
Your blood sugar is likely low. Alcohol disrupts your liver’s ability to release stored glucose, and research shows that blood sugar can drop significantly the morning after drinking, sometimes to levels that cause shakiness, fatigue, and difficulty concentrating. Eating is one of the most effective things you can do, even if your stomach is protesting.
Toast, crackers, bananas, or oatmeal are gentle options that provide the carbohydrates your body needs to restore blood sugar. Eggs are a particularly good choice. They’re rich in an amino acid called L-cysteine, which helps your body neutralize acetaldehyde, the toxic byproduct your liver creates as it breaks down alcohol. L-cysteine reduces the cell damage and oxidative stress acetaldehyde causes, and it supports production of your liver’s main protective antioxidant. In studies, it has been shown to relieve nausea, headache, fatigue, and anxiety after drinking. A simple plate of scrambled eggs and toast covers multiple recovery bases at once.
Your diet in the days before drinking matters too. People with higher dietary intake of zinc and niacin (vitamin B3) tend to experience less severe hangovers. These nutrients play a direct role in how your body processes alcohol. Foods rich in both include meat, poultry, fish, legumes, and whole grains.
Understand Why You Slept Poorly
Even two standard drinks are enough to delay and reduce REM sleep, the restorative stage of sleep where memory consolidation and emotional processing happen. Higher amounts make this worse in a clear dose-response pattern: the more you drink, the more REM sleep you lose. Five or more drinks may help you fall asleep faster, but this actually worsens the disruption later in the night as your body rebounds.
This is why you feel exhausted even after sleeping a long time. Your brain didn’t get the deep restorative cycles it needed. A nap of 20 to 30 minutes during the day can help, but avoid sleeping for hours, which can throw off your sleep schedule for the following night. Getting back to a normal bedtime that evening is one of the most important things you can do to feel fully recovered by the next day.
Supplements That May Help
A few supplements have clinical evidence behind them, though none is a magic bullet. Korean red ginseng, taken before drinking, has been shown in a randomized controlled trial to speed up the clearance of both alcohol and acetaldehyde from the bloodstream. Participants who took it reported lower scores on hangover severity scales at both 6 and 15 hours after drinking.
Prickly pear extract, taken about five hours before drinking, has also shown some ability to reduce hangover severity. The evidence is modest, but it appears to work partly by reducing the inflammatory response to alcohol.
These are prevention tools, not cures. If you’re already hungover, they won’t help much. For the morning after, focus on electrolytes, food, and ibuprofen.
Reduce Your Next Hangover
The type of alcohol you drink makes a real difference. Dark liquors like bourbon, brandy, cognac, and dark whiskey contain high levels of congeners, chemical byproducts of fermentation that worsen hangover symptoms independently of alcohol itself. Clear drinks like vodka, gin, light rum, and white wine contain far fewer congeners. Red wine is also high in congeners despite not being a spirit. If you’re choosing between a bourbon and a vodka, the vodka will typically produce a milder hangover at the same amount of alcohol.
Beyond that, the most effective prevention strategies are straightforward: drink a glass of water between each alcoholic drink, eat a substantial meal before you start, and slow your pace. Your liver processes roughly one standard drink per hour. Anything beyond that creates a backlog of toxic byproducts that your body will still be dealing with the next morning.