A nurse is teaching a female client who has a new prescription for transdermal sumatriptan to treat migraine headaches. Which of the following instructions should the nurse include?

A. "Take this medication daily to prevent headaches": Sumatriptan is not used as a preventive medication; it is prescribed for the acute treatment of migraine attacks. Daily use would increase the risk of side effects without providing prophylactic benefit. B. "You can bathe with the patch in place.": The transdermal sumatriptan patch is designed to stay adhered during activities such as bathing or showering. This makes it convenient for clients to use without interrupting their treatment during daily hygiene routines. C. "Activate the patch 30 minutes after application.": The patch is self-activated at the time of application. Waiting 30 minutes before activation would delay symptom relief and is not part of the prescribed use. D. "Use contraception while taking this medication.": While some medications require contraception due to teratogenic risks, sumatriptan is not contraindicated in this way. Clients should still discuss pregnancy planning with their provider, but contraception is not a required instruction.