A 36-yeаr-оld presents with cоmplаints оf redness аnd irritation to her left eye for 2 days. She reports a "sandy" type of irritation when she rubs it, and minimal discharge first thing in the morning. She denies any recent illnesses other than "well, I caught a cold from my toddler". She denies vision changes. Medical history includes migraines, hypothyroidism, and seasonal allergies. The AGACNP examines the following: (Photo obtained by Dr. Sara Damron, DNP, APRN, with consent from patient.) What is the most appropriate treatment?