The most common type of Lyme disease rash resembles a bull’s-eye on a dartboard. The rash tends to have a red center, surrounded by a clear ring with a red circle around it. They can spread and may measure up to 12 or more inches across. The rash will usually appear within 30 days of a bite from a tick that carries the Lyme disease bacteria.Does a bullseye rash always mean Lyme disease?
In its early stages, Lyme disease typically causes a rash called erythema migrans, more commonly known as a "bulls-eye rash," around the bite area. 2 Sometimes flu-like symptoms, nerve problems, and heart problems.