Millions of Britons who believe they have a penicillin allergy may be needlessly avoiding the vital antibiotic, according to a major new NHS trial. Researchers found that over 90% of people tested showed no adverse reaction to the drug, suggesting widespread misdiagnosis.
The Hidden Cost of False Allergies
The misconception creates significant problems for both patients and the healthcare system. Those incorrectly labelled as allergic often receive more expensive, less effective antibiotics, contributing to the growing threat of antimicrobial resistance.
Professor Clare Morgan, who led the research, explained: "Many childhood rashes were mistakenly recorded as allergies. By retesting adults, we're discovering most can safely use penicillin - the NHS's most important antibiotic."
How the Testing Works
- Initial skin prick test with diluted penicillin
- Gradual exposure under medical supervision
- Final oral dose to confirm tolerance
The process takes about 2.5 hours and could revolutionise treatment for millions. NHS England is now expanding testing availability nationwide.
Why This Matters
With antibiotic resistance predicted to cause 10 million deaths annually by 2050, penicillin's effectiveness is crucial. Correcting false allergies could:
- Reduce use of broader-spectrum antibiotics
- Cut treatment costs by up to 65%
- Improve patient outcomes
- Ease pressure on NHS resources
Patients who suspect they may have been misdiagnosed are encouraged to consult their GP about retesting options.
