Beer is produced by the brewing process involving yeast to ferment the sugars from starch such as wheat or barley. Even though uncommon, some experience allergic reactions after ingesting beer.
An allergic reaction is usually linked with some of the proteins or components that differ among beers and does not essentially represent sensitivity to all beer products. Since various proteins or ingredients can trigger a reaction, the symptoms and their severity vary for every individual. If worried about the allergy symptoms after ingestion, a doctor should be seen.
Reactions to barley
One of the identified culprit for allergic reactions among individuals who drink beer are the proteins taken from barley.
The usual reactions include hives as well as a serious reaction known as angioedema which is a skin rash strikingly similar as hives with swelling that forms under the skin especially around the lips or eyes.
In case the swelling forms in the throat or mouth, it can obstruct the airway resulting to wheezing or difficulty breathing or swallowing. These symptoms necessitate immediate medical care.
Reactions to sorghum
Since many individuals opt for gluten-free options, more beer is now brewed using sorghum instead of wheat or barley.
Hypersensitivity to sorghum is the usual cause. The symptoms generally last for more than 2 hours and includes hives, skin lesions, swelling and even fever in some cases.
Risk for contact allergy
It is likely even though rare for beer to trigger skin rashes or hives after the skin was exposed.
Risk for anaphylaxis
Anaphylaxis is a severe systemic allergic reaction that causes a drop in the blood pressure along with constriction of the airway where breathing and swallowing becomes impossible.
This issue is considered extremely rare. Nevertheless, if it arises especially with severe symptoms, it requires immediate medical treatment.
Quick Note / Disclaimer
The material posted on this page on beer allergy is for learning and educational purposes only. To learn to recognize the indications of this reaction, register for a first aid and CPR course with Ottawa First Aid.