my guy, its a good thing u want to come here but i think u should remain in LA and rather work here as a visiting nurse.
university of nigeria teaching hospital is nice and they will pay u as lecturers are paid based on your lecturership level.
as for discrimination, noooo, since ure planning to b a teacher, i dont think so. visit
http://www.unn.edu.ng for more info
but i still think u should remain in LA as u have beta chances and pay there