Rare Allergic Reaction to Local Anesthesia: A Case Report

Area of Science:

• Dentistry
• Allergology
• Pharmacology

Background:

• Lidocaine is a widely used local anesthetic in dental procedures.
• Hypersensitivity reactions to lidocaine, though rare, can occur.
• Prompt identification and management of local anesthetic allergies are crucial for patient safety.

Purpose of the Study:

• To report a rare case of delayed hypersensitivity reaction to lidocaine in a dental patient.
• To emphasize the importance of accurate clinical history and allergy testing for local anesthetic selection.
• To review the literature on lidocaine allergy and its management.

Main Methods:

• Detailed clinical history recording.
• Intradermal allergy testing for lidocaine.
• Successful treatment with an alternative local anesthetic agent.

Main Results:

• A patient presented with delayed hypersensitivity symptoms (swelling, erythema) after lidocaine administration.
• Intradermal testing confirmed a specific allergy to lidocaine.
• Alternative local anesthetic use enabled uneventful completion of dental procedures.

Conclusions:

• Accurate diagnostic measures, including allergy testing, are vital for managing rare local anesthetic hypersensitivity.
• Thorough patient counseling regarding their allergy and treatment options is essential.
• Proper management ensures safe and effective dental care for patients with local anesthetic allergies.