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Penicillin allergy is an abnormal reaction of your immune system to the antibiotic drug penicillin. Penicillin is prescribed for treating various bacterial infections. Common signs and symptoms of penicillin allergy include hives, rash and itching. Severe reactions include anaphylaxis, a life-threatening condition that affects multiple body ...
If you need antibiotics, penicillin allergy can make a big difference in what drug you get. Find out about symptoms, how you get tested and what your options are if you're allergic.
It occurs when your immune system reacts negatively to the antibiotic penicillin. You may experience a skin rash, swelling or difficulty breathing shortly after taking penicillin. An allergic reaction can be a medical emergency, so contact your healthcare provider or call 911 if symptoms are severe. Allergy Treatment.
What are the symptoms of penicillin allergy? Allergic reactions to penicillins can be acute or delayed. Acute symptoms can occur quickly, usually within an hour of taking the medicine.
One symptom of a true allergic reaction can be a rash called hives — an itchy, raised rash. But other types of rashes, like flat red rashes, are common with viral infections. These may be mistakenly attributed to a drug allergy when they were caused by something else.
A positive reaction to a test will cause a red, itchy, raised bump. A positive result indicates a high likelihood of penicillin allergy. A negative test result usually means you're not at high risk of an allergy to penicillin. But a negative result is more difficult to interpret because some kinds of drug reactions cannot be detected by skin tests.
A penicillin allergy can cause symptoms such as hives, shortness of breath, and areas of swelling. In some cases, it may also lead to anaphylaxis, a life threatening condition...