Yes, about every other time I go. They last about a week. I have been trying to determine exactly when I get them. Last time I went May 19 & 20 received no bites. A couple of times ago while walking down the Bradford Trail a couple of wasps managed to get inside my backpack and my back. Needless to say it was a precarious situation because the nest was nearby. So consequently did get bit several times. I have been assuming that was probably the source of my bites. On a routine doctor visit, my doctor mentioned that a very toxic insect was the culprit. If you could share what the source of these bites were that would be great because they are definitely uncomfortable. Thanks