A 4 year old male child is brought to your office by his mother who notes that his right eyelids seem red and swollen for the past 24 hours. She says that the child was outside playing in the backyard yesterday, and thinks he was stung by a bee over the right upper eyelid. The redness and swelling began soonafter. Although the child is in some discomfort, he seems otherwise well and is afebrile. On examination there is mild-moderate edema of the upper and lower eyelids but no apparent proptosis. Visual acuity is 20/20 bilaterally with normal extraocular movements, pupillary responses, and IOPs.