Erythema migrans is a classic rash that is seen as an ever-growing, red ring around the tick bite site. The rash typically appears one to two weeks after the bite and is usually over 5 cm in size (often around 15 cm). Erythema migrans is a fairly harmless condition, but can be an early stage of Lyme disease. This is a more serious, chronic infectious disease that can affect the nervous system (for example the meninges and facial nerve), eyes, heart and joints.
The forest tick can transmit the Lyme bacteria through its bite. About 10-40% of adult ticks carry this bacteria. It has been documented that the risk of transmission of the bacteria increases with the time the tick is attached. As a rule, it is necessary for the tick to have been on the skin for close to a day.
If you develop erythema migrans, this condition is treated with antibiotic tablets over about a week and a half. The antibiotic treatment is curative, makes the rash disappear and prevents Lyme disease.
Our dermatologists help people of all ages, from newborns to the elderly, with everything from simple skin changes to serious conditions.
Our dermatologists help people of all ages, from newborns to the elderly, with everything from simple skin changes to serious conditions.
