What’s the quickest way to sober up?

There is no such thing as quick sobriety, and in the case of alcohol poisoning, general treatment as well as medication such as Metadoxine is required.
Generally speaking, simple mild alcoholism only requires home observation, drinking plenty of water, lying on the side to prevent accidental inhalation, while at the same time, it is best to have someone around to supervise the person in order to prevent restlessness or over-excited behavior leading to personal accidental injury.
In the case of moderate to severe alcoholism, medical intervention is required, and medication can usually be taken under the direction of a doctor.
For example, the use of metadoxine and other activators of acetaldehyde dehydrogenase, to accelerate the metabolism of acetaldehyde, thereby promoting sobriety, while intravenous fluids, diuresis, etc., to accelerate the metabolism of alcohol, and appropriate supplementation of vitamin B ₁ , B ₆, vitamin C, are helpful in the oxidative metabolism of alcohol.
If the mental state is poor, there is drowsiness or even coma, you need to use naloxone and other drugs to promote wakefulness, and manic patients can use diazepam and so on.
When obvious gastrointestinal symptoms occur, proton pump inhibitors such as omeprazole can be used to protect the mucosa of the gastrointestinal tract.
Alcohol consumption is damaging to health, so do not drink alcohol if possible. If you become unwell after drinking alcohol, it is recommended that you seek medical attention as soon as possible to avoid serious consequences.