The red bumps on the legs of anaphylactic purpura can be treated with medication, as well as general measures to regulate. 1. Drug treatment: It is recommended that patients with allergic purpura with red bumps on the legs use antihistamines such as loratadine and cetirizine, as well as glucocorticosteroids such as methylprednisolone and dexamethasone under the guidance of a doctor. In addition, patients can also follow the doctor’s instructions with cyclophosphamide, azathioprine and other immunosuppressive drugs. 2. General Measures: Patients with allergic purpura need to do patch test, skin prick test to check allergens, and need to reduce the chances of contact with allergens after the allergens are clarified. In addition, patients need to ensure enough rest, diet needs to eat light and easy to digest food, such as green vegetables, eggs and so on. In addition, it is necessary to keep the skin of the affected area clean and dry, and avoid scratching the skin. It is recommended that patients with allergic purpura should seek timely medical treatment when they have red bumps on their legs, and they can choose the appropriate medication and treatment under the guidance of the doctor.