Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. If Amoxil is taken with certain other drugs, the effects of amoxicillin. If you experience bruising, fever, skin rash or sores on the genitals. Amoxicillin will not treat a viral infection such as the common cold. Properly discard this product when it is expired or no longer needed. Amoxil is used to treat a wide variety of bacterial infections. This medicine may cause temporary staining of the teeth. If you have ever had asthma, diabetes, or kidney or liver disease. Amoxicillin will not treat a viral infection such as the common cold or flu.