Erythema Migrans Rash

The majority of cases of Lyme disease start with a bull's eye rash ("erythema chronicum migrans") at the site of the tick bite. The rash can occur days to weeks (typically 7-10 days) after a tick bite.

Treatment with antibiotics is indicated if this rash appears.

It is thought that Lyme Disease can be prevented if the tick is removed within 24 hours of attachment.