Flies within my house? Flies in my house? well today my brother and his gf come over...

Flies in my house?
well today my brother and his gf come over and they were with my mom out the put money on and they left the back door open (shudders ) anyways a whole bunch of flies got within and i sprayed raid, but its nightime now and i cant find them how do i carry rid of them there disgusting
Answers:    always look below windows first, as the flies will always team leader towards the light to get out. a nontoxic way to get flies out is to draw the curtains at one running out of the room to make it darker, and the flies will move about the other way towards the open door.hope this help
try getting mint plants they hate the smell of mint, thats why i dont get lots flies in my garden