Answer:
take the prescription to her local pharmacy and give it to the Pharmacist.
Explanation:
Susan's next logical step would be to take the prescription to her local pharmacy and give it to the Pharmacist. The Pharmacist will read the presciption and fill a bottle with the prescribed medication that Dr. Penningworth has approved Susan to take. Afterwards, Susan should take the filled presciption bottle and read the instructions on how often and how much of the medicine she should take.
