An unusual localised reaction associated with vancomycin therapy

Area of Science:

• Dermatology
• Pharmacology
• Internal Medicine

Background:

• Vancomycin is an antibiotic commonly used for serious bacterial infections.
• Adverse cutaneous reactions to vancomycin are known but typically present differently.
• Localized skin reactions are less commonly reported with vancomycin administration.

Purpose of the Study:

• To report a unique case of a localized erythematous plaque following parenteral vancomycin.
• To highlight a potentially new adverse cutaneous reaction associated with vancomycin therapy.
• To contribute to the understanding of vancomycin's dermatological side effects.

Main Methods:

• Case report presentation.
• Clinical observation of patient's skin reaction.
• Review of existing literature on vancomycin-induced skin reactions.

Main Results:

• A large, localized erythematous plaque developed on the forearm after parenteral vancomycin administration.
• The reaction was localized and distinct from more common vancomycin-related rashes.
• This presentation appears to be a novel cutaneous manifestation.

Conclusions:

• Parenteral vancomycin can induce a localized erythematous plaque, a previously unreported cutaneous adverse event.
• Clinicians should be aware of this potential reaction when administering vancomycin.
• Further investigation may be warranted to understand the mechanism of this specific reaction.