Pustular psoriasis is divided into generalized and limited. Pustular psoriasis has an acute onset and can spread all over the body within a few days to a few weeks, starting with dense pinpoint-sized potential small pustules that soon fuse into pus lakes, often accompanied by high fever, joint swelling and pain, and general discomfort, with increased white blood cells seen in routine blood tests. Restricted pustular psoriasis is more common in palm and toe pustular psoriasis. There are symmetrical erythematous spots on the palms of both hands and toes, and pinhead-sized to chestnut-sized to small pustules appear on the erythematous spots: they dry up on their own after about 1-2 weeks, and new pustules appear after desquamation, and the disease stretches repeatedly and persistently. Restricted pustular psoriasis onset characteristics: 1, mostly limited to the palmoplantar, often in the size of the fissure or foot plantar batches of most yellowish pinhead to corn size pustules, the base flushed. 2, about 1 to 2 weeks after the pustules rupture, crusting, flaking. Later, small pustules appear under the scales, sometimes light and sometimes heavy. 3.Self-perceived itching or pain. Sometimes there is also a low fever or general discomfort, the nails are often involved, cloudy and hypertrophic, with crest-like elevation. 4.Patients often have psoriasis lesions on other parts of the body. 5.Some patients first develop in the palmoplantar area and then transform into generalized after many repeated attacks. The onset of generalized pustular psoriasis is characterized by the following features: 1. The onset is mostly acute, and the pustules can spread all over the body within a few days to a few weeks, starting with dense pinpoint-sized potential small pustules, which soon fuse into pus lakes. 2. The rash can occur in all parts of the body, but it is more common in the folds and the flexors of the limbs. Sometimes small pustules can appear on the nail bed and the nail plate is thick and cloudy. 3, often accompanied by high fever, joint swelling and pain and general discomfort, blood tests can be seen to increase the number of white blood cells. 4.After the pustules dry up, the skin flakes off immediately, and new small pustules start immediately after the flakes fall off; the course of the disease can be repeated for several months or longer. In the diagnosis, the main difference between the two is that the generalized ones are accompanied by systemic symptoms such as fever and general malaise, and are prone to secondary erythroderma, while the limited ones are generally not. Pustular psoriasis can often develop common psoriasis damage during the treatment process. The disease is mostly seen in young adults. The disease is often accompanied by furrowed tongue. The key to treating psoriasis: find out the cause and treat it symptomatically There are very many causative factors for psoriasis disease, and different therapies are implemented depending on the cause, and there are many different types of psoriasis disease, and different therapies are used for different types, causative factors, and different properties. The treatment of psoriasis must first be diagnosed and then a treatment plan must be developed before treatment is carried out.