What is Erythema?

3. Erythema Migrans

Lyme disease can cause erythema chronicum migrans. Around 80 percent of people with Lyme disease develop circular rashes resemble targets or bullseyes. The rashes measure about two inches in size initially, though they can grow as large as 12. Typically, the rash appears at the site of the tick bite that caused the disease. It may not appear for up to 30 days following the bites. The rash itself is rarely itchy or painful. However, because it is the result of Lyme disease, a person may experience fevers, headaches, chills, and joint aches. Treatment for Lyme disease involves oral antibiotics. The rash will resolve along with the condition.