Fly Infestation?

Question

This morning, when I woke up, there were about 20 flies on my curtains. Then, after killing them, I opened the blinds and there were about 40 more on my windows. They were barely flying, and they were pretty small. This is definitely a fly infestation. Can someone tell me what to do?

Answer 1

KILL THEM ALL!!!!!

Answer 2

you could use a commercial flea bomb which will also kill flies.