I struggled with severe acne for about 3 years. Itried everything under the sun, until I finally gave in and started the Accutane treatment. My ONLY regret is not starting this treatment sooner!
I was treated for roughly 5-6 months. I did not see results right away, infact, my skin got slightly worse for a very short period of time and than significantly improved about 3-4 in. I was completely clear by the 5th month, and still am almost 2 years later. I do get a little pimple or two during the week of my period, but other than that, it's been almost 2 years and I still have clear skin! :)
I experienced a few obnoxious *temporary* side effects along the way; (NOTE: These all went away shortly after treatment.)
-Very dry/chapped lips, that would crack and bleed *ONLY IF* neglected. (Keep something on them at ALL times, and you will be fine! Keep them coated! Vaseline helped tremendously, they sell it in a lip tube/balm at any Walgreens.)
-Dry, flakey facial skin that would peel *IF* neglected. (MOISTURIZE! Use a good oil free facial lotion with SPF daily, as often as needed! Don't use a harsh facial cleanser either, I used Dove Sensitive Skin (bar soap) for face and body, it removes make up too! And stay out of the sun!)
-Dry, red, flakey, itchy patches on hands, legs, and arms. (I got a prescription cream from my derm that took care of it right away.)
-Very dry and itchy inside nose/mild light ocasional nose bleeds do to this. (I used Vaseline on a q-tip and lightly coated my nostrils to ease this.)
-Dry eyes, ocasional (Visine or Clear Eyes takes care of this.)
-Ocasional mild head aches (Not sure if this was from work or the Accutane.)
-Mild blurred night vision (This was never a problem, but I did notice ocasionally.)
These side effects are more of an annoyance than anything. It's well worth putting up with temporarily than dealing with acne for how ever long. Good luck!