I'm currently on my 3rd week of Accutane and have rashes, should I stop taking the medication. (photo)

It's my 3-rd week on accutaine and I've got some pretty annoying rashes. My whole body itches. The most problem areas are the hands/forearms, it's very red and itchy, so is my entire body but is not red only these 2 areas seems to be red. So is this normal ? Should I stop taking the medication ? And if now how do I treat it ?