The following may help your doctor determine the cause of your symptoms and whether you have alcohol intolerance or something else:

  • Description of your symptoms. Be prepared to describe your symptoms and what drinks cause them. Your doctor may want to know whether you have blood relatives with food allergies or other allergies.
  • Physical examination. A careful exam can identify or exclude other medical problems.
  • Skin test. A skin prick test can determine whether you may be allergic to something in alcoholic beverages — for example, grains in beer. Your skin is pricked with a tiny amount of a substance that could be causing your reaction. If you're allergic to the substance being tested, you'll develop a raised bump or other skin reaction.
  • Blood test. A blood test can measure your immune system's response to a particular substance by checking the amount of allergy-type antibodies in your bloodstream known as immunoglobulin E antibodies. A blood sample is sent to a laboratory to check reactions to certain foods. However, these blood tests aren't always accurate.


The only way to avoid alcohol intolerance symptoms or an allergic reaction is to avoid alcohol or the particular beverage or ingredients that cause the problem. For a minor reaction, over-the-counter or prescription antihistamines may help reduce symptoms, such as itching or hives. However, antihistamines can't treat a serious allergic reaction.

If you've had a severe allergic reaction to a certain food, wear a medical alert bracelet or necklace to let others know you have an allergy, in case you're unable to communicate during a severe reaction. Ask your doctor if you need to carry emergency epinephrine (adrenaline) in the form of an autoinjector (EpiPen, Auvi-Q). This prescription device has a concealed needle that injects a single dose of epinephrine when you press it against your thigh.

Preparing for your appointment

Although alcohol intolerance usually isn't a serious issue, you may want to discuss it with your doctor at your next appointment. Here's some information to help you get ready for your appointment.

  • Write down your symptoms, including any that may seem unrelated to the reason for which you scheduled the appointment.
  • Write down key personal information, including major stresses or recent life changes. Stress can sometimes worsen allergic reactions or sensitivities.
  • List all medications, vitamins or supplements you're taking and the dosage.
  • Write down questions to ask your doctor.

Questions to ask your doctor

  • What do you think is causing my reaction to alcoholic beverages?
  • Are any of my medications likely causing or worsening my reaction to alcohol?
  • Other than the most likely cause, what are other possible causes of my symptoms?
  • What tests do I need?
  • What treatments are available?
  • Do I need to give up alcohol?

Don't hesitate to ask other questions you have.

What to expect from your doctor

Your doctor may ask:

  • When did you notice a reaction to alcoholic beverages?
  • What beverages — beer, wine, mixed drink or a particular type of liquor — trigger your symptoms?
  • How severe are your symptoms?
  • How long does it take for symptoms to appear after drinking the beverage?
  • How much of the beverage do you drink before you notice a reaction?
  • Have you tried over-the-counter allergy medications, such as antihistamines, for your reaction, and if so, did they help?
  • Are you allergic to particular foods, or to pollens, dust or other airborne substances?

What you can do in the meantime

Avoid the beverage or beverages that seem to cause your reaction until your doctor's appointment. If you do drink a beverage that causes a mild reaction, over-the-counter antihistamines may help relieve symptoms. For a more severe reaction — severe skin reaction, weak pulse, vomiting or trouble breathing — seek emergency help right away.

March 26, 2015
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