Amoxicillin is a semi-synthetic penicillin antibiotic, while cephalosporin is a class of antibiotics obtained by semi-synthesis with the culture of Corynebacterium coronarium, so amoxicillin does not belong to the cephalosporin class. Amoxicillin is mainly against Streptococcus pneumoniae, Staphylococcus as well as Enterococcus faecalis have better antibacterial activity, and the antibacterial effect on Gram-positive bacteria is stronger. It also has antibacterial activity against some negative bacteria, such as Escherichia coli and Haemophilus influenzae. Adverse reactions such as nausea, rash, and diarrhea may occur after amoxicillin administration. Patients who are children, pregnant women, or nursing mothers should use the drug with caution. People who are allergic to this drug or penicillin are prohibited from using this drug. The specific dosage and usage of the above drugs should follow the doctor’s instructions, and should not be used on their own to avoid adverse reactions.