A nurse is caring for a client who is receiving amoxicillin IV for an infection. The client develops hives and complains of itching. What should the nurse's next action be?

Stop the amoxicillin immediately and assess the client's airway, breathing, and circulation.

Administer a dose of diphenhydramine to alleviate the rash.

Notify the healthcare provider to discuss alternative antibiotics for the client.

Instruct the client to continue the amoxicillin but monitor the client closely for any further reactions.