My Wife And I Are Both Being Bitten By A

My wife and I are both being bitten by a small mite (maybe oak mite prevalent now in St Louis) that we can't get rid of. Intense itching and painful biting sting are hallmarks of this issue. When we are out of the house for any length of time (say3-4 hours) the symptoms disappear. We have put out tent boards to catch them to no avail. When we eat dinner these tiny creatures attack and if we are lucky we swat at them hopefully killing them. They are minute in size. HELP Bill