Cysts are usually the last to go on accutane so keep in mind you're still early in the game. Ice it to reduce inflammation and please a heat pad on it to draw it out. With accutane though, it's best to leave your acne alone and let accutane do its thing. As a lsat resort, there are cortisone shots.

Chin up Hun

Looks like it's ready to pop,sterilise a thin needle,the trick is finding the pore opening,insert the needle,then squeeze inwards,if it hits the mirror it's over, if you get just a little pus,leave it and try again in about 6 hours.