Legionnaires' disease is treated with antibiotics, such as erythromycin. A stronger medication, rifampin, may be used in severe cases.
Antibiotics may cause stomach upset, rash, and allergic reactions. Rifampin turns the person's urine and other body secretions an orange color.
Legionnaires' disease can be persistent. It can last for several weeks to several months, if not treated. After treatment, individuals should be aware that relapses can occur.
The individual may have regular visits with the healthcare provider until he or she is completely recovered. Any new or worsening symptoms should be reported to the provider.