A common symptom of Lyme disease is a bullseye-shaped rash. However, many other conditions may cause a similar rash, including ringworm, fixed drug reactions, and allergic reactions to insect bites.

Medically reviewed by Jurairat J. Molina, MD A circular rash isn't always ringworm. While the bullseye circle rash is typical ...

Only 20 percent of those rashes will appear in the bullseye pattern – that’s 14 bullseye rashes out of 100 cases of Lyme disease. “When I talk to doctors and tell them that about a third of ...

Bullseye rash a sign One of the most distinctive signs of early Lyme disease is a “bullseye rash” — redness around tick bites that look like a bullseye and can increase in size.