After the occurrence of mild purpura, the etiology should be investigated and symptomatic treatment should be given at the same time. In general, when mild purpura occurs, platelets and other allergic factors can be checked to determine whether there is thrombocytopenic purpura or allergic purpura, and after the cause is clear, symptomatic treatment can be given, such as platelet supplementation or the use of anti-allergic drugs for symptomatic treatment. For localized purpura, hot compresses or physiotherapy can be used to promote local blood circulation to facilitate the absorption of purpura as soon as possible. If the symptoms are severe, non-steroidal anti-inflammatory drugs such as ibuprofen or diclofenac sodium can also be used to improve the symptoms and promote absorption.