did u get these bumps only after antibiotics?
I am not completely sure when they appeared since my acne was so bad that it was red and bumps and cysts everywhere, but there's a good chance that these are the most persistent "closed comedones" that sometimes do not go away with accutane, since I still had a cyst, too. It's incredible how persistent acne can be, especially cysts and things deep inside the skin. Since my bumps do not seem to get any worse nor better from nizoral/ketoconazole nor the antibiotics, i will keep using the retin-a, and if it doesn't help in 1 - 3 months at all, I will try the exfoliating way, BHA or something similar. I will inform about it here if it works.