U can start with eye drop bepofree - 1 drop in both eyes, twice a day.
Eye ointment ocupol / chlorocol - apply like Kajal, before going to bed at night.
Eye drop cmc - 1 drop in both eyes, 3 - 4 times in a day. These medicines usually don't have any side effects.
Next Steps
If the problems doesn't subside within a week, consult an ophthalmologist nearby.
Health Tips
Use ice packs, avoid long duration of mobile /computer use.. Follow 20-20-20!