Treatment of chronic pelvic inflammatory disease due to different types of cephalosporins, patients with different conditions, so the use of different methods, if the outpatient treatment can be oral or the use of ceftriaxone sodium, cefoxitin sodium, a single intramuscular injection, if the more serious need for intravenous cephalosporin drugs. 1. Mild: Non-intravenous treatment is available for mild symptoms: oral cephalosporins, or a single intramuscular injection of ceftriaxone sodium 250mg or cefoxitin sodium 2g, or other third-generation cephalosporin antibiotics, such as cefazoxime sodium. 2. More serious conditions: if the situation is worse, the seriousness of the disease needs to be administered intravenously, such as cefotetan 2g or cefoxitin sodium 2g intravenous drip plus doxycycline combination. The use of specific drugs need to be under the guidance of a professional doctor, do not judge the use of drugs to avoid danger.