How to Clear a Hangover: What Actually Works

There’s no instant cure for a hangover, but you can speed up recovery and ease the worst symptoms with a few targeted strategies. Hangover symptoms peak once your blood alcohol level drops back to zero and can last 24 hours or longer, so the goal is to support your body while it finishes processing alcohol’s toxic byproducts.

Why You Feel This Bad

Most hangover misery comes from a combination of dehydration, inflammation, and a buildup of acetaldehyde, a toxic compound your liver creates as it breaks down alcohol. Normally your liver neutralizes acetaldehyde quickly, converting it into water and carbon dioxide. But when you drink heavily, your liver can’t produce enzymes fast enough to keep up, and the excess acetaldehyde lingers in your system, contributing to nausea, headache, and that general feeling of being poisoned.

Alcohol also suppresses a hormone called ADH that tells your kidneys to hold onto water. As your blood alcohol rises, your kidneys flush out extra fluid, which is why you urinate so frequently while drinking. By morning, you’re dehydrated, and that dehydration amplifies headaches, fatigue, and brain fog.

Rehydrate, but Do It Right

Water alone helps, but it’s not the whole picture. Because alcohol triggers your kidneys to dump fluid, you’ve lost volume without necessarily losing large amounts of minerals in the process. Still, your body absorbs fluid more efficiently when it contains some sodium and sugar. A glass of water with a pinch of salt, a sports drink, or even broth will rehydrate you faster than plain water chugged on its own.

Aim to drink steadily rather than forcing down a liter at once, which can worsen nausea. Sipping 8 to 12 ounces every 30 minutes is a reasonable pace. Coconut water and diluted fruit juice are also good options because they provide potassium and natural sugars without overwhelming your stomach.

What to Eat (and Why Eggs Help)

Eating might be the last thing you want to do, but food stabilizes your blood sugar and gives your liver raw materials to work with. Your best bet is something bland and protein-rich. Eggs are a particularly smart choice because they’re high in an amino acid called L-cysteine, which helps your liver break down acetaldehyde faster. In a 2018 study, participants who took L-cysteine before drinking had significantly lower concentrations of acetaldehyde in their saliva an hour later compared to a placebo group. Eggs, nuts, and dairy are all natural sources of this amino acid.

Toast, bananas, and oatmeal are also solid options. They’re easy on the stomach, provide carbohydrates to stabilize blood sugar, and won’t trigger more nausea. Greasy, heavy foods are popular hangover folklore, but they’re more likely to upset an already irritated stomach than to help.

Pain Relief: Choose Carefully

Reaching for a painkiller is instinctive, but which one matters. Acetaminophen (Tylenol) and alcohol are both processed by your liver using the same protective substance, called glutathione. When you’ve been drinking heavily, your glutathione stores are already depleted. Taking acetaminophen on top of that can allow a toxic byproduct to accumulate and damage your liver. If you drink heavily or binge drink regularly, the Cleveland Clinic recommends keeping daily acetaminophen doses below 2,000 mg, which is half the normal maximum.

Ibuprofen (Advil, Motrin) or aspirin are generally easier on the liver, but they irritate the stomach lining, which alcohol has already inflamed. If you choose ibuprofen, take it with food and water, and stick to the lowest effective dose. For many people, rehydrating and eating will relieve the headache enough that painkillers become unnecessary.

Sleep and Rest Actually Work

Alcohol disrupts sleep architecture, reducing time spent in the deepest, most restorative stages. Even if you slept for eight hours, the quality was poor. One of the most effective things you can do is go back to sleep or at least rest in a dark, quiet room. Your liver continues clearing acetaldehyde while you rest, and your brain gets the recovery time it was shortchanged overnight. A 90-minute nap can make a noticeable difference in how you feel by afternoon.

What Doesn’t Work

Coffee might make you feel more alert, but caffeine is a mild diuretic and can worsen dehydration if you’re not drinking water alongside it. One cup is fine if you’re a regular coffee drinker and want to avoid a caffeine-withdrawal headache on top of everything else, but it won’t accelerate your recovery.

“Hair of the dog,” or drinking more alcohol, delays the hangover rather than fixing it. Your symptoms peak as blood alcohol returns to zero. Adding more alcohol just pushes that moment further into the future and gives your liver even more work to do. It also sets up a pattern that can slide toward dependence over time.

Activated charcoal, IV drip services, and most “detox” products have no strong clinical evidence supporting their use for hangovers. Your liver is already doing the detoxing. The most useful thing you can do is support it with hydration, food, and time.

Why Some Hangovers Hit Harder

Not all drinks are created equal. Darker spirits like bourbon, whiskey, and red wine contain far more congeners, which are toxic byproducts of fermentation including acetone, tannins, and additional acetaldehyde. Bourbon contains 37 times the congeners found in vodka. A study comparing the two found that bourbon drinkers reported feeling significantly worse the next morning than vodka drinkers, even when both groups consumed the same amount of alcohol. Lighter-colored drinks like vodka, gin, and white wine tend to produce milder hangovers, though they’ll still cause one if you drink enough.

Mixing different types of alcohol doesn’t inherently make hangovers worse, despite the old saying. What mixing usually does is make it harder to track how much you’ve consumed, which leads to drinking more overall.

A Practical Recovery Timeline

If you woke up feeling terrible, here’s a realistic expectation. Symptoms are typically worst in the first few hours after waking, when your blood alcohol has just hit zero. Light nausea, headache, and fatigue will usually begin improving by mid-afternoon if you hydrate and eat something. By 18 to 24 hours after your last drink, most people feel close to normal, though heavy sessions can leave lingering fatigue and brain fog into the following day.

The short version: drink water with some salt or electrolytes, eat eggs or toast, take ibuprofen with food if you need it, avoid acetaminophen, skip the “hair of the dog,” and give yourself permission to rest. Your liver is doing the heavy lifting. Your job is to stay out of its way.