Short Course of Accutane (3 Months)

I'm currently on a 3 month course of accutane. It's 40mg/day. So far I've seen great result. I started off with moderate acne and I now only have 2 or 3 pimples. I'm in the last month. I've had all the common side effects (dry skin/nose, dry scalp, etc) and am managing them well. Can I expect this course to be effective long term?

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