Shingles: Shingles is caused by the same virus that causes chickenpox. Initially, the virus causes chickenpox. The virus remains dormant in the body until the virus is reactivated by a trigger such as stress, fatigue, cancer, radiation treatments, injury, HIV/AIDS, or a weakened immune system. Symptoms include pain in a broad band on one side of the body, fever, chills, headache, itching, and a red, raised rash. Treatment may incorporate pain medication, applying cool compresses, and avoiding skin-to-skin contact with others.