Urticaria fever may be caused by the infection of the organism, which needs to be treated with antipyretic treatment and anti-allergic treatment. 1. Anti-fever treatment: need to measure the body temperature regularly, if the temperature is greater than 38.5 ℃, need to use antipyretic drugs, such as ibuprofen, acetaminophen and so on. At the same time, we should look for the cause of fever, such as blood test to determine whether there is bacterial, viral or mycoplasma infection, and pay attention to drink more water. 2. Anti-allergic treatment: oral anti-allergic drugs, such as Avastin capsules, fexofenadine hydrochloride tablets; can also be injected into the muscle chlorpheniramine maleate injection, benadryl injection to control the symptoms of urticaria. It is recommended that patients with urticaria fever to the hospital in time, follow the doctor’s instructions for treatment, do not blindly use their own medication, so as not to delay the condition.