Amoxicillin take a few days to see the effect of individual differences, clinical general use of about 1 to 3 days to start to see the effect of the need to comply with the doctor’s instructions for the use of drugs. Amoxicillin instructions pointed out that after taking the product 1 to 2 hours to reach the maximum blood concentration, the effect of time affected by the degree of disease, the degree of sensitivity to the drug, there is no definite time, clinically common for the use of 1 to 3 days or so to begin to see the effect. Amoxicillin is used for infections caused by sensitive bacteria, such as genitourinary tract infections, respiratory tract infections, skin and soft tissue infections. Adverse reactions can be seen as vomiting, nausea, diarrhea, pseudomembranous enteritis, rash, drug fever, asthma, anemia, eosinophilia, thrombocytopenia. The drug is contraindicated in penicillin allergy, positive penicillin skin test. The drug should be used reasonably under the guidance of a doctor.