A nurse is contributing to the plan of care for a client who has severe lactational mastitis. Which of the following interventions should the nurse suggest for inclusion in the client's plan of care?

Collect a blood sample for culture.

Teach the client to apply warm compresses.

Administer prescribed analgesia.

Teach the client about proper hand hygiene prior to touching the breasts.

Collect a sample of breastmilk for culture.

Instruct the client to stop breastfeeding until the infection has resolved.