Scrub typhus is an infectious disease caused by Rickettsia tsutsugamushi. Tetracycline can be used to treat the disease, and long-term use may lead to sequelae such as liver and kidney impairment, maculopapular rash, and tetracycline teeth. Scrub typhus is a natural epidemic disease, after suffering from scrub typhus, patients may have acute high fever, toxemia, skin rash, lymph node swelling and other symptoms. Tetracycline can be used to treat Rickettsia tsutsugamushi infections. However, if tetracycline is used for a long period of time, there is a possibility that the organism may develop sequelae such as liver and kidney impairment, maculopapular rash, and tetracycline teeth. When symptoms such as fever, rash, and enlarged lymph nodes appear within 5-20 days after field work, it is recommended to consult a doctor promptly. A thorough and systematic examination is conducted under the guidance of a doctor. If you are diagnosed with Scrub typhus, you should use medication under the guidance of your doctor, and the dosage and duration of medication should be as prescribed by your doctor to prevent after-effects and complications.