The Henoch-Schnlein Purpura (HSP) is a systemic small vasculitis, characterized by palpable purpura, abdominal pain, hematuria or proteinuria, and arthritis. The etiology is unknown but it is manifested by allergic reaction, so it is called Anaphylactoid Purpura. The prognosis of disease is usually good, but about 50% of patients have experienced recurrences. Oral corticosteroid is treatment of choice, but it cannot prevent recurrence of Disease. We experienced two case of young patients who suffered from the Henoch-Schnlein purpura. We prescripted Mokyangbinrang-hwan, Insamyang-witang, Gwibi-tang. For both two patient, symptoms were much relieved.