Riker29, definitely some truth to what you said, but there are a lot of variables....
Sausage,
Accutane works through several mechanisms such as: reduction in sebum production, slowing the growth of a bacterium called P. acnes and reducing clogging in the path that sebum travels to get to the surface of the skin. However, the majority of the benefits usually result from the reduction in sebum production. Hormonal changes are typically what trigger the increase in sebum production in the body to begin with (i.e. the initial onset of acne typically coincides with puberty). Once an acne problem exists due to the overproduction of sebum, long term Accutane use (12-20 weeks) can help in many cases by "permanently" reducing the size of the sebaceous gland and hence the amount of sebum the body produces.
However, short-term use typically does result in drying of the skin due to a reduction in sebum, but it tends not to be permanent. Many patients (myself included when I was 19 and even now at 31) see dramatic results in 1-2 weeks, but again if dosage were to stop and overproduction were an ongoing problem, then the oily skin issue would return.
My personal experience.... When I was a teenager I had pretty bad acne and went to a Dermatologist who tried just about everything (soaps, creams, antibiotics etc) and eventually put me on Accutane for 16 weeks @ 40 mg per day.... Nasty experience (bloody noses, finger tips peeling to the point they hurt when I touched anything, peeling lips...), but it got rid of my acne. Problem is, when I started using moderately heavy androgens (cyp, sust etc), my skin got oily again and the acne returned, albeit not as bad. Typically any major change in hormone levels will cause a resulting response in sebum production if you are prone to the problem to begin with. So, heavy AAS use always causes this problem for me (and for some reason Clomid at the end of a cycle makes me break-out worse than anything). I now occassionally take a 20 mg pill a couple of times per week when I first start a cycle and when I come off (as both trigger a sebum response due to the change in hormone levels). This works for me, but to Riker29's implied point, it will not work overnight (I know it will take 1-2 weeks before I "dry up", so I start before the onset of the problem).
Now, some people have nasty sides on this stuff (not even going to get into detail on females using this), some of which hit pretty quick. Your addtional concerns on a cycle would need to be liver toxicity AND lipid profile (huge issue on increasing LDL, reducing HDL and increasing triglycerides.... compounded by juice and certainly made worse by the use of specific anti-estrogens such as anastrozole).
So, in short (or long, given the length of my response).... This may not be the cure you want to try and certainly not without some guidance from a doctor when you start-out (and frequent blood tests). I would recommend a different course of action. Try washing a couple of times per day using benzoyl peroxide soap/creme or some other compound to dry your skin and/or kill the bacteria. If you are not too fair skinned, tan 1-2 times per week (works wonders for drying my skin out... I do not use any tanning lotion/oil as it reduces the drying effect). As long as your skin isn't too dry, put something on your typical problem areas at night (any potentially after showering in the AM as well), even if you have no zits at the moment (benzoyl peroxide, salicylic acid, sulfur compound, alpha hydroxy acids etc). And if you need something to "take down" those sudden huge lumps that surface, try Isotrex (topical version of isotretinoin, the stuff that is in Accutane). The version of Isotrex with Erythromycin works even better (I have tried everything, including tea tree oil to dry up a big zit overnight and Isotrex is the only thing I have found that works for me, brings them right down). By the way, make sure you wash after tanning and working out, as both will tend to make you oily and it is a good time to get it off your skin before bacteria and clogging start. One last point, large doses (i.e. 5-10 grams per day) of B5 work well for some people (you can get powder real cheap at BAC). I tried this and it was working for me during a "problem period", but caused some fairly sever stomache discomfort for me.
Best of luck with your problem!
Descartes