We were at the grocery i was holding a cooking spray oil and i accidently spray my mother's eye because i thought it was lock. what should i do?

Chemical irritant: We typically recommend immediate flushing of affected eye(s) w/plenty of (clean) water if exposed to chemicals or foreign body. Depending upon type of exposure as well as response to flushing, you should also see medical evaluation, specifically by eye doctor (Ophthalmologist), especially if irritation continues/worsens or there's a change in vision.