Firstly, allergic purpura is neither a genetic nor a contagious disease, so there is no need to worry about it being inherited or transmitted to others. It is an allergic reaction caused by drugs, food, or infections, typically manifested by bleeding and bruising on the skin and mucous membranes of the limbs, joint pain, and hematuria. Diagnosis requires the combination of clinical manifestations and related tests such as urinalysis. If it is merely a case of the skin type, it only necessitates bed rest and observation of the number and extent of bleeding points on the skin and mucous membranes without special treatment. If there are symptoms like black stools or proteinuria, bed rest is imperative along with the use of anti-allergy medications or corticosteroids to enhance treatment, continuing until the proteinuria resolves.