That is not true! all antibiotics are effective at ridding acne. However, if you have used any of them before or several times over, you may become resistant to it, hence why it didn't work for you.
(ones in ()I've personally used for an infections)
Erythromycin (works),
Doxycline
Minocycline (intentionally for acne, works)
Tetracycline (works)
Augmentin (possibly)
Levoflaxcin (possibly)
Penicillin (don't remember)
Amoxocyllin (works)
Benzaclin
Benzamycine
Of course there are more, but I wouldn't take ANY antibiotics for your acne. Try using the topical antibiotics instead. I've never found my skin to become resistant from using them over the years, but I haven't used them in at least year. However, if you take the internal ones (don't use with the topicals if u do), you will eventually pay. My skin was looking wonderful on Minocyline and after 3 months I stopped (didn't want all the nasties that came with it) and in the end I still broke out less than a month after stopping.
This break out was worse than I've had in several years PLUS it caused my acne to branch out to other areas that I'd NEVER had it before (eyebrows, more on the nose, some in the ear, some on my legs, some on my lower arms...thanfully most were tiny). This was probably caused by the mild yeast infection it gave me (1st one ever).
After two years I've finally gotten most of those extras breakouts to disappear and my skin is looking a lot better. This summer, I've been dabbling with probitiotics and a diet change and I suggest to you that if ANY of you use antibiotics to take probiotics, lower your sugar intake, and bread intake (sugar). Basically make sure you are eating less carbs (sugar) than usual to pervent a yeast infection.
Antibiotics are not a PERMANT solution. Whether you go off of them or continue using them, you're breakouts will come back. Hopefully you will be fortunate enough to simply "outgrow" it.
[This message has been edited by SweetJade1 (edited 08-30-2002).]