What is the treatment for a Mycobacterium marinum infection?
Most infections are treated medically with a fairly long course of oral antibiotics. The length of the course of antibiotics varies. Medications may be required anywhere from three to six months or even up to 18 months depending on the severity of the disease and spread of the infection. Typically, physicians may recommend continuing the medications for an additional four to six weeks even after all of the symptoms have fully cleared.
The gold standard for treatment of infection by M. marinum is oral antibiotics. Clarithromycin with ethambutol is currently the preferred antibiotic selection. Rifampin is typically added to the antibiotics regimen if deeper organ infection is present, such as bone infection (osteomyelitis).
Some milder infections (mainly in healthy people) have cleared on their own without any treatment. Rarely, surgical treatment and drainage of deeper tissue or skin infections may become necessary in more complicated cases. However, medical treatment remains the primary and preferred treatment for nearly all cases.