There are three phases to the disease:
Early Localized Phase. During this initial phase, the skin around the bite develops an expanding ring of redness. The ring may have a bull’s eye appearance with a bright red outer ring surrounding clear skin in the center. Most people don’t remember being bitten by a tick. More than one in four patients never gets a rash. The skin redness may be accompanied by fatigue, chills, muscle and joint stiffness, swollen lymph nodes and/or headaches.
Early Disseminated Phase. Weeks to months after the rash disappears, the bacteria spread throughout the body, impacting the joints, heart and nervous system. Symptoms include migrating pain in the joints, neck ache, tingling or numbing of the extremities, enlarged lymph glands, sore throat, abnormal pulse, fever, changes in vision or fatigue.
Late Dissemination Phase. Late in the dissemination of the disease, patients may experience an inflammation of the heart, which can lead to heart failure. Nervous system issues develop, such as paralysis of facial muscles (Bell’s Palsy) and diseases of the peripheral nerves (peripheral neuropathy). It is also common for arthritis and inflammation of the joints to appear, which cause swelling, stiffness and pain.
Lyme disease is diagnosed through a combination of a visual examination and a blood test for Lyme bacteria antibodies. Most cases of Lyme disease are curable using antibiotics, but the longer the delay, the more difficult it is to treat. Your dermatologist may prescribe medications to help alleviate joint stiffening.