They may also be dark red or even blue in color which makes them look similar to a bruise over the skin. In later stages of tick bite rash red color may also change to purple. Multiple rashes. In many cases, more than one rash may arise over the skin surface as a result of a tick bite. Some patients may also experience itchy symptoms in the region of rash. In later stages, the condition may lead to joint aches, extreme tiredness, muscle pain, headaches and high fever.