We spray pretty religiously to prevent these guys showing up in the house . However, we don’t spray inside the sheds and last night I was stung once again on my left hand . This is my third sting. First time was on my back and the second two now have been on my hand. The hand is far worse in that it radiates down the entire arm and makes it feel like it’s on fire. Today my entire arm is numb, which is better than what it felt like last night.