There are two types of medications for pelvic inflammatory disease: oral medication and intravenous medication. Oral medication is generally used for patients with mild conditions and there are two regimens: regimen A, ceftriaxone sodium is given intramuscularly or with ceftizoxime or cefotaxime, and doxycycline can be added if there is mycoplasma or chlamydia infection. Option B is to give 400mg ofloxacin orally with 0.4g of metronidazole, and the intravenous drug regimen is for patients with poor general condition, serious illness, fever, nausea, vomiting, etc. The anti-inflammatory drugs used are mainly given intravenously, and the effect is faster with intravenous drip. Option A, erythromycin or cephalosporin drugs are ceftriaxone, cefotetan disodium. Option B, quinolones and metronidazole drug combination program, the combination of oxfloxacin plus metronidazole. Option C, penicillin drugs combined with tetracyclines, mainly ampicillin sodium or amoxicillin plus doxycycline.