Spectrum: Local Antimicrobial Stewardship, for CHEO-OCTC

Erythema Migrans Rashes

Classic Rash
“Classic” Lyme Disease Rash: Circular red rash with central clearing that slowly expands.

Central Crust
Expanding Rash with Central Crust: Red, expanding lesion with central crust.

Multiple Rashes
Multiple Rashes, Disseminated Infection: Early disseminated Lyme disease; multiple red lesions with dusky centers.

Red, Oval Plaque
Red, Oval Plaque on Trunk: Red, oval-shaped plaque on trunk.

Central Clearing
Expanding Rash with Central Clearing: Circular red rash with central clearing that slowly expands.

Bluish Rash
Bluish Rash, no Central Clearing: Bluish hue without central clearing.

Red-Blue Lesion
Red-Blue Lesion with Central Clearing: Red-blue lesion with central clearing on back of knee.