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Repeated patch testing in penicillin allergy
The British Journal of Dermatology
|February 1, 1981
Summary
Repeated penicillin patch testing in fifteen patients showed that allergic reactions worsened in eight individuals and lessened in five. This highlights variability in hypersensitivity responses over time.
Area of Science:
- Dermatology
- Allergology
- Pharmacology
Background:
- Penicillin allergy is a common concern.
- Patch testing is used to diagnose delayed hypersensitivity reactions to drugs.
Purpose of the Study:
- To evaluate the reproducibility and evolution of positive penicillin patch test reactions.
Main Methods:
- Fifteen patients with confirmed positive penicillin patch tests were retested multiple times.
- Clinical observation and assessment of reaction severity were performed.
Main Results:
- Eight out of fifteen patients exhibited increasing reaction severity upon repeated testing.
- Five patients demonstrated decreasing reaction severity over time.
Conclusions:
- Repeated penicillin patch testing can reveal dynamic changes in hypersensitivity.
- Individual responses to penicillin allergy testing show significant variability.