I came across this video (nicely done, with a rather nice soundtrack). "Of the 99 patients who were treated with azithromycin, 58 reported an improvement of symptoms. No patients were worse at the end of treatment. Side effects were minor bowel problems that resolved by dividing the daily dosage." Unfortunately there doesn't seem to be a reference to the study this refers to. Any clues? http://www.youtube.com/watch?v=aZlYaVZqSjI&feature=related I then found this very informative explanation by a GP of the differences between Erithromycin, Azithromycin, and Clarithromycin. Interestingly, he highlights that erithromycin can be undesirable due to its damaging effects, especially when re-administered, the apparent tolerance built up to it, and the short half-life. He seems to say that Azithromycin is better...I got a bit lost in the middle...but then goes on to say that Clarithromycin is the antibiotic of choice, for several reasons, including greater efficacy against mycobacteria (toxic mold?) such that it's even better than the other semi-synthetic choice, azithromycin. http://www.youtube.com/watch?v=UqWThRfzQ9c&NR=1 In the affected members of my family, including myself, one of the only issues in our family medical history is penicillin allergy, and one of us has been caning the erithroymcin over the years and now has serious bowel damage, plus I am looking to clear a hypothesised fungal infection in my gut, so this all sounds like it could be quite relevant to me, and to us - I'm thinking clarithromycin might be worth a try for me. A poll on allergy to these antibiotics might be in order... Anybody had good results with clarithromycin?