Patients with allergic purpura may experience fever, which we call immune fever. To treat such fevers, we need to use non-steroidal anti-inflammatory drugs, commonly used ones include diclofenac sodium sustained-release tablets. Also, if patients with allergic purpura develop fever symptoms, we need to rigorously differentiate whether there is a concurrent infection. We must inquire whether the patient has symptoms of infection such as cough, expectoration, abdominal pain, diarrhea, frequent urination, urgent urination, etc. If the patient shows these symptoms, we then consider that the patient with allergic purpura may also have an infectious fever. In such cases, treatment should include the use of antibiotics like cephalosporins, penicillin, etc. Note: Follow medical advice regarding medication use.