leave your house shut up for 3 to 4 weeks and let them die without a host.
Seal all cloth and fur in bags and shoes. Freezing stuff wet kills them, Spray for fleas around cracks in your home before you go. Don't forget to spray your car with fly spray and vacume it. go swimming and wear new clothes and shoes or previously frozen shoes and clothes, they are tiny tiny biting flies attracted to us for a blood meal and breed like mad, dogs and cats carry them in their fur so wash them before you go away. I don't know what they are called but they are a pest, They leave bites on your legs, arms and get in your hair clothes and bedding.