I have wasps inside my duck coop. Since I have a severe allergy to wasp stings, this is a problem for me. I have been able to control/discourage the wasps around house (window and door frames, siding joints) using a spray of peppermint oil, water and dish soap. The peppermint smell is strong. Would this be safe to use inside the coop? I was thinking I would let the ducks out in the morning and spray when they are not there. The smell lingers but only really strong when first applied. Any comments or other suggestions would be welcome.