Do u have to avoid the sun when taking amoxicillin. Yes you can, it's Metronidazole that you have to avoid . . . . . . Taking products that only contain the medications . Amoxicillin [Edit . Someone told me that you should avoid sun exposure whilst taking . all medications A B C D E F G H I J K L M N O P Q R S T U V W . . . . . . These drugs you would have to avoid sun exposure . . . . . small amount then yes, the worse it could do . . . . . . . . . . that will say to avoid sun exposure. take ... more