I hatred centipedes!?

ok so this might be hard to understand but here go:
I have centipedes i've killed at lowest possible 4 that i can think but apparently my boyfriend kills them more or smaller quantity daily. an exterminator sprayed inside & out not even a month ago. my first one i saw was surrounded by the bathroom i'm not kidding you i screamed approaching a 2 year old. i've killed one surrounded by the hallway in the kitchen and another one within the bathroom. yes at night but my boyfriend works night so apparently he sees them during the day. i hear they bite and its somewhat approaching a bee sting. i had little bumps on my arm 1 day & i didn't deem anything of it but they did itch. well i just read that that can crop up & can be a sign of an allergy. not cool at all in my judgment. my bf sees them in the bathroom solely, in the sink and tub. i've heard to return with rid of damp places but i can't get rid of those so what do i do? i don't know where on earth they are coming from since we see them everywhere. could drano down the drains help?
Answers:    I hate centipedes too. They enjoy to have a moist environment to live so there must be one neighbouring. YOu can apply a dessicate like boric acid that will dry up their bodies and assassinate them or at least keep them out, but must also find the source. Is in that a leak in or beneath the bathroom? Could they be coming from a moist place outside like mulch with plastic lower than it? I don't know what kind of place you live in. Try putting screen over the drains, but I doubt that they're living in there.

Check the crawl space if you enjoy one for dampness. Are the gutters clean and functional? They love cool moist places. There may be some condensation from your AC return ducting.

You must do your slice to defeat the centipede so that we can all live surrounded by peace. If all else fails burn the place down.

I be a sign of are there leaves and debris contained by the gutters that gets wet when it rain and then stays wet? Do the gutters drain freely? If the problem basically started it might have to do with adjectives of the rain the in the midwest this year. They guzzle spiders and other insects so maybe there's a food source like that close by for them. The only other thing I can surmise is they like your cool, moist bathroom. Is there an exhaust supporter for steam? Window air conditioners can leak dampen, but since they aren't there that probably isn't the problem. If there are trees, piles of wood or leaves close that could be their hideout. I found like a nest of them in a pile of wood once and also contained by some mulch that had plastic under it for weed control.
There probily coming from outside and coming contained by from vents, I know this because it used to happen to me near roaches. Best thing to do is somehow spray poisind in the vent, that should help. If that doen't help, spray it down the drains. If that still doesn't relief, look every were in the house for a wile for centipedes coming. I hopes this help!