How long does allergic purpura not recur to calculate cured

Allergic purpura this disease is generally not able to cure, generally due to allergies caused by vascular bleeding disease, it is recommended to determine allergens, try to prevent contact allergens, once the attack, to apply hormone therapy, whether the key to recurrence is to remove allergens. Allergic purpura, good hair in three to ten years old children, if occurred in three years of age, often scalp, back, and orbital tissue edema, most patients and catch cold, viral cold, upper respiratory tract infection, etc., there are patients and take a certain drug, food, etc., there are also some patients and fatigue, mental tension, rest, poor sleep, etc., there are also some patients and mosquitoes bite.