You'll be fine once you skin toughens up.The trouble is, standing in some parts of the yard, with no visible mounds, they start attacking.
They got into my wife's large flower pot, it only had dirt in it, she started planting in it Sunday and they attached her.
I some liquid concentrate to treat the entire yard, and Andro bait for visible mounts. I'll get these suckers eventually! Until then, we don't go in the yard without sneakers and socks.
By the way, heavy rain will bring the ants to the surface also.