Ocular Rosacea with Blepharitis

A 52-year-old man with a 5-year history of cutaneous rosacea presents with bilateral burning, itching, and gritty foreign-body sensation worse in the mornings. He reports eyelid crusting on waking and recurrent styes. Ocular examination reveals bilateral lid margin erythema with dilated telangiectasias, capping and plugging of meibomian gland orifices with thickened turbid secretions, and reduced tear film break-up time (4 seconds). Slit-lamp examination shows mild bulbar conjunctival injection and punctate epithelial erosions on the inferior cornea with fluorescein staining. The structure marked **B** in the diagram demonstrates these characteristic findings. Which of the following is the most appropriate initial management for this condition?