After the purpura disease is well, the way to prevent recurrence has the following points, the first point is to clarify the patient suffers from purpura allergens are, so that can be achieved through the avoidance of allergens, to avoid allergies, and further can prevent the possibility of purpura recurrence. The second point is to enhance the patient’s own physical fitness through exercise, especially aerobic exercise, so that the body’s muscles, as well as the immune system can be well-coordinated, for the prevention of the disease is good. The third point is to make sure to avoid serious infections, especially infections of the upper respiratory tract, which can prevent triggering. The fourth point is that patients should pay attention to keeping warm, as well as avoiding prolonged standing for a long time, all of which should be paid attention to. Clinically, the prevention of purpura is still based on the doctor’s main diagnosis and main suggestions, combined with the patient’s own actual situation, to develop a good program.