How long is it possible to pause Accutane? Stopped taking it for a month while traveling, can I pick up where I left off?

I have been taking 40mg of accutane for 7 months up until a month ago when I stopped my treatment while travelling. My dermatologist says I should keep taking accutane for another 2 months but I was wanting to get another opinion on if this will affect my overall treatment and if I need to start over from the beginning if I want a permanent result. Thank you!