Symptoms of recurrence of anaphylactoid purpura

For different causes of anaphylactoid purpura recurrence symptoms are not the same, if viral infection caused by anaphylactoid purpura, early must be accompanied by respiratory tract infection symptoms, such as cold fever, need to go to the hospital in time to see a doctor, determine whether it will cause anaphylactoid purpura recurrence. If it is not allergic purpura caused by infection, but food, drugs and other allergens, there will be no these early symptoms, there are some allergic purpura, will show abdominal pain, joint pain and other manifestations. Abdominal pain is due to allergic purpura, lesions in the digestive tract caused by abdominal paroxysmal or persistent colic, may cause vomiting and hematochezia, this disease is called abdominal allergic purpura.