Tetanus is caused by a toxin produced by Clostridium tetani bacteria. There is no cure, so treatment focuses on managing complications until the toxin resolves. General measures include wound cleaning, maintaining an open airway, positioning the patient, and providing supportive care. Drug therapies may include tetanus immunoglobulin, antibiotics, muscle relaxants, and anti-convulsants to control symptoms. Nursing care involves monitoring the patient, minimizing stimuli, maintaining nutrition and hydration, and providing comfort.