Summary of case history ,Ke Mou, female, 64 years old, has recurrent high fever for 8 months. More than 8 months ago, there was no obvious inducement to start shivering, and wearing more clothes cannot be alleviated., even asthma in severe cases.Accompanied by fever, the highest body temperature often exceeded 39.0 ℃. It occurred 1-4 times a day, and it could retreat to normal by itself, and it was easy to sweat. After many visits to the municipal and provincial Class 3A general hospitals, after various infection related examinations, tumor screening, immunological screening, bone marrow puncture and color Doppler ultrasound of various parts, CT and MRI plain scan + enhanced scan, PET-CT whole-body scan, except for splenomegaly, anemia, high ESR and high CRP, no obvious abnormalities were found, and the diagnosis of fever is pending. At the time of seeing a doctor, the patient was unable to take care of herself. He needed to be helped to eat and defecate, and his body was extremely weak. Symptoms: listlessness, fatigue, inability to walk by oneself, no strength to talk, cold aversion first and then fever every day, sweat so much that she need to change her clothes 5-6 times a day, occasional abdominal pain, double vision, poor appetite, poor sleep, yellow urine, normal stool, light tongue, yellow and greasy fur, weak pulse.,TCM diagnosis i,nternal injury fever-phlegm dampness stagnation heat syndrome (both dampness and heat),Western medicine diagnosis t,he cause of fever remains to be investigated,Therapeutic methods ,Treatment with Traditional Chinese medicine prescription about Sweet Dew Toxin-Removing Elixir alone.,Clinical outcomes ,After taking 10 doses of traditional Chinese medicine orally, the patient's fever subsided, and then there was no fever and shivering. After oral 10 doses of traditional Chinese medicine again, it returned to normal. Follow up for 1 year, no recurrence.