Amoxicillin, a commonly prescribed antibiotic, can cause skin rashes in 5–10 per cent of children. These range from mild non allergic rashes to serious allergic reactions like hives or anaphylaxis.

Amoxicillin has interactions with some other drugs. Examples include warfarin, methotrexate, and allopurinol. Talk with your doctor to avoid potentially harmful effects from amoxicillin interactions.