MSFinals-3901

MSFinals-3901

A 25-year-old woman presents to her General Practitioner (GP) with a 1-day history of itching and watery discharge from both eyes.
On examination, the vision is 6/9 in both eyes. Both pupils are equally reactive to light. The conjunctivae are both chemosed with mild diffuse injection. The eyelids are slightly oedematous.
Her past medical history includes eczema. Her vital observations are as follows:
Blood pressure 110/70 mmHg
Heart rate 65 bpm
Respiratory rate 12
Temperature 36.7 °C
Oxygen saturation 99% on air
What is the most likely diagnosis?