If I could get a vaccine or some other treatment that got my body to not itch from their saliva, or even to just itch for a more limited amount of time, I could

If I could get a vaccine or some other treatment that got my body to not itch from their saliva, or even to just itch for a more limited amount of time, I could handle the rest (deadly disease excepted). Sure, they're annoying, but I don't actually care about them sucking my blood that much. I have plenty of the stuff, they only take a tiny amount, and they feed birds and bats with it. Having to spend hours afterward physically uncomfortable certainly tempers my magnanimity.