Drug-allergic purpura can be improved by immediate discontinuation of allergy medication as well as medication. Drug-allergic purpura is a vasculitis that occurs when the body takes a certain kind of drug, which is manifested by the appearance of purpura on the skin, abdominal pain, arthralgia or kidney damage and other clinical manifestations. 1. Discontinue allergic drugs: first of all, stop using allergy-causing drugs immediately and get rid of the triggers. 2. medication: simple skin lesions, oral vitamin C, calcium tablets, loratadine, etc.; if the patient has arthralgia, oral non-steroidal anti-inflammatory drugs, such as acetaminophen, etc., to avoid strenuous exercise, the need for bed rest; if the patient has severe arthralgia, abdominal pain and nephrotic syndrome purpura nephritis, the need for the systematic application of glucocorticoid drugs, such as methylprednisolone and so on. The above drugs are recommended to be used under the guidance of a doctor to avoid self-medication. Drug-allergic purpura, it is recommended that patients go to the hospital in time for treatment.