The disease can mimic normal psoriasis at first: You'll have patches of red skin with raised scales that itch or burn. Once the blisters appear, it becomes known as pustular psoriasis.
Some pustular psoriasis breakouts are sudden and severe, while others affect people many times over months or years. Still, more people have symptoms that fall between these two extremes.
There are several types of the disease. You can tell which type you have based on your symptoms and the areas of skin that are covered with blisters.