Medications called antihistamines can help treat symptoms of a mild allergic reaction. The medication epinephrine, commonly called an EpiPen, can help treat a severe allergic reaction. If you experience any of these symptoms after consuming alcohol, seek immediate medical care. Understanding the distinctions between alcohol intolerance and alcohol allergy is crucial for proper alleviation of symptoms. The primary cause of alcohol intolerance is a genetic deficiency in the aldehyde dehydrogenase