According to the Taipei area optometrist, is very common this season. Highly contagious and transmitted mostly through hand contact but also through anything mutually shared where hands both touched. Alcohol spray and anti-bacterial lotion on hands isn’t good enough, need to wash hands with soap. 80-90% chance will migrate to the other eye.
Treatment given, a couple types of eye drops, a bedtime eye ointment. Come back in 1 week if not cleared up.
Initially felt like something was stuck inside eyelid.
Given that it’s contagious I am surprised that they didn’t send you off to a Quarantine Hotel and send out the moon suit people to incarcerate your close contacts.
May you have a relaxing Christmas and recover in time for New Year (the Western one).