The eye lash in your eye has caused trauma to the structures of your eye and probably they have got infected. You are advised to take hot fomentation 3-4 times a day, use some anti-biotic eye drop
s locally 2 hourly and anti-inflammatory drops 3 times a day. At night you should use, some anti-biotic ointment.
Depending upon gravity of pain, you can use some analgesics orally as and when required. This should solve the problem in 48-72 hours.