Cephalosporin and metronidazole are both antibiotics with antibacterial and anti-inflammatory effects, cephalosporin plus metronidazole can treat infectious diseases that occur in various systems, such as skin, respiratory system, urinary system and other infectious diseases. Cephalosporin is a general term for cephalosporin antibiotics, with a broad-spectrum antibacterial effect, effective against most gram-positive and negative bacteria, mainly used for the treatment of a variety of infectious diseases caused by sensitive bacteria, such as upper respiratory tract infections, abdominal cavity, skin and soft tissues, the urinary system. Adverse reactions of Cephalosporin include: gastrointestinal reactions, such as nausea and vomiting, loss of appetite, dyspepsia, etc.; allergic reactions, such as rash, urticaria, drug fever, asthma, angioneurotic edema, anaphylaxis, etc. Metronidazole is a nitroimidazole antibiotic, which is widely used for systemic or localized infections caused by anaerobic bacteria, such as the abdominal cavity, digestive tract, female reproductive system, lower respiratory tract, skin and soft tissues, bones and joints, etc. It can also be used to treat intestinal and extraintestinal amebiasis, trichomoniasis of the vagina, pouch bugs, and guinea worm infections. Adverse reactions to metronidazole include: gastrointestinal reactions, such as nausea and vomiting, loss of appetite, and abdominal cramps; and neurologic, such as headache, vertigo, sensory abnormalities, limb numbness, and ataxia. A few patients may experience redness of the face, itching, dysuria, cystitis, measles, leukopenia and other symptoms. If you need to use cephalosporin and metronidazole, it is recommended to consult a professional doctor and follow the doctor’s instructions to standardize the treatment, not blindly self-medication, to avoid adverse effects or delayed condition.