can anyone please help,we are suffering our first season of flies,they are everywhere,we cant even go outside without getting bombarded by them.this is no way to live,we have red topped traps that are full.but  can we buy a spray or chemical of some sort to keep them away from the house?
IS THIS NORMAL FOR THIS TIME OF YEAR,WE NEVER HAD THEM ALL SUMMER,BUT NOW ITS FRIGHTENING.any advice received gratefully
Thanks .