Does IV antibiotics possibly rid a child of pseudomonas? My son, age 7, has been on ongoing oral antibiotics since he was 2! We have tried everything, but the doctor says the pseudomonas he cultured makes it hard for him to completely clear up. We never did the iv antibiotic. Is it worth looking in to? Our fear is that he will get immune to the antibiotic and then be in real danger. Thank you.