I've had very good results with Azithromycin 250mg on Monday, Wednesday and Friday (so just three times a week) taken at night to reduce tummy upsets and combined with skinoren topical.
My skin was horrific. I had blackheads, papules, pustules, cysts and nodules. I've seen amazing results, but it took about six or eight weeks to see the effects, as is the case with most antibiotics. I took pictures of my skin on a weekly basis and the results were really good. I still have a few pimples, but compared with the initial pictures of 50 plus lesions on both sides of my face, I can't complain.
My skin problems were made worse by fish oils, leading my GP to classify me with severe acne and suggest Roaccutane. I said no because my husband and I want to try for a baby soon.
The Azithromycin/Skinoren combo saved me. I was so tired of feeling ugly all the time and having work colleagues ask me what was happening to my skin. I recommend trying it, but you need to persist for at least eight weeks.