What are the symptoms of Henoch-Schonlein purpura?

Purpura is a common and more serious allergic symptom. After suffering from purpura, purple patches will first appear on the skin, so it is called purpura. Allergic purpura is divided into abdominal type and articular type, each with different symptoms. After suffering from purpura, you should go to the hospital in time to find out the allergens in order to minimize the damage. This requires us to know the symptoms of articular purpura.

Articular allergic purpura is a type of allergic purpura. Its clinical characteristics are that in addition to a certain degree of skin purpura, it also has clinical manifestations mainly characterized by joint pain and swelling due to the involvement of joints. The clinical characteristics are swelling and pain in the knees, ankles, elbows, and wrists before and after the onset of skin purpura, with the pain and swelling in the knees being the most significant, and may be wandering and recurrent. During physical examination, the affected joints may be obviously red, swollen, hot, painful and have dysfunction, and there may be a small amount of fluid in the joint cavity. Careful examination may also reveal skin petechiae, erythema or urticaria-like changes of varying sizes, which do not fade when pressed, on the 4 limbs, especially the lower limbs and buttocks. Laboratory tests showed abnormal changes with diagnostic significance, such as positive capillary fragility test, accelerated erythrocyte sedimentation rate and positive C-reactive protein.

Treatment:

Since allergic purpura at the joint type is relatively rare, especially when joint pain and swelling occur before skin purpura in some patients, it is easy to be misdiagnosed as rheumatoid arthritis or other joint diseases. Therefore, when children experience joint swelling and pain again after recovering from a cold, they should consider allergic purpura at the same time as rheumatoid arthritis, and conduct a comprehensive examination in time. In particular, pay attention to the presence of skin petechiae, erythema, and urticaria-like changes, and pay attention to the results of capillary fragility tests, so as to make a clear diagnosis and reasonable treatment in a timely manner.

The prognosis of articular allergic purpura is good. After effective treatment, the swelling and pain of the joints can subside in about 3-5 days, and no sequelae will be left after subsidence. However, it is necessary to be vigilant about its tendency to relapse and strengthen prevention. The main principle of prevention is to find possible allergens and avoid them in the future. Among them, upper respiratory tract infection is the most common cause of Henoch-Schönlein purpura in children. Therefore, keeping warm, avoiding cold and rain, preventing indigestion, increasing exercise, and improving the body's resistance and immunity become the main preventive measures after the child is cured.