Individuals who experience the alcohol flushing reaction may be less prone to alcoholism.
Disulfiram, a drug sometimes given as treatment for alcoholism, works by inhibiting acetaldehyde dehydrogenase, causing a five to tenfold increase in the concentration of acetaldehyde in the body.
The resulting irritating flushing reaction tends to discourage affected individuals from drinking.

The most obvious symptom is flushing on a person's face and body after drinking alcohol.
Other effects include "nausea, headache and general physical discomfort".

Many cases of alcohol-induced respiratory reactions, which involve rhinitis and worsening of asthma, develop within 1–60 minutes of drinking alcohol and are due to the same causes as flush reactions.
Individuals who experience the alcohol flushing reaction may be less prone to alcoholism. Disulfiram, a drug sometimes given as treatment for alcoholism, works by inhibiting acetaldehyde dehydrogenase, causing a five to tenfold increase in the concentration of acetaldehyde in the body. The resulting irritating flushing reaction tends to discourage affected individuals from drinking.
The most obvious symptom is flushing on a person's face and body after drinking alcohol. Other effects include "nausea, headache and general physical discomfort".
Many cases of alcohol-induced respiratory reactions, which involve rhinitis and worsening of asthma, develop within 1–60 minutes of drinking alcohol and are due to the same causes as flush reactions.
Alcohol flush reaction