FCEM2-1364

A 3-year-old boy is brought in by his father with a red and painful right eye. On examination, you note the presence of conjunctival erythema. There is also mucopurulent discharge and lid crusting evident in the eye. You make a diagnosis of bacterial conjunctivitis.
With reference to the current NICE guidance, which of the following should NOT be included in your management plan for this patient?