Hello, I read your message and understood your problem. I think that the infection with Mycobacterium marinum has re-occurred. If you are exposed to the bacteria you tend to get re-infected time after time especially now after 3 surgeries and antibiotic therapy that have weakened your immune system. You must stay way from nonchlorinated water, from pools and swimming. If you have an aquarium at home get rid of it. Exposure to seafood markets or aqueous environments predisposes for the infection. It is very important to eliminate the chances of reinfection because a long lasting infection may damage the soft tissues and cause complications. My advice is to see an infectious disease specialist and do some tests. We need to be sure if it is a reinfection with Mycobacterium marinum or a co-infection with some other organism. The antibiotic therapy is a little bit long lasting. Usually, patients need to take antibiotics for 4-6 weeks but sometimes they need a very long treatment 25 months or more. See your doctor again for a proper physical examination and test. If you are still on antibiotics continue them as long as the infection will vanished. Hope this will be helpful for you. Dr.Albana