Pustular psoriasis is a rare type of psoriasis characterized by little puss-filled bubbles (pustules) and general red-soreness around that same affected area.  Like most other kinds of psoriasis, the affect areas of the skin, including those areas covered with pustules, are itchy and can come and go depending on the whim of the disease.

Some other symptoms of pustular psoriasis include nausea, headaches and joint pain.  The most acute type of pustular psoriasis, named after von Zumbusch, has side effects that that are severe enough to land people in the hospital.

In cases where nails are affected, finger and toenails can become detached  due to puss build up underneath.

Anyone who has pustular psoriasis should probably see a dermatologist as soon as possible (or sooner) as some of the side effects of this particular type of psoriasis can be sever to the point of being life-threatening.  It is good to at least be aware of this condition since certain drugs / chemical compounds can trigger severe inflammations.