I have 4 cystic pimples right now and plenty of other ones. I've used almost every topical acne prescription there is. I've taken tetracycline, doxycycline and started taking 50 mg minocycline twice daily, a month ago. I saw little difference after about 2 weeks, then it seemed to get worse. I know I need to stay on it longer to see full results but how long should that take and is this experience normal? And if it doesn't work, should I take Accutane? How long should that take to show results?