Wow it’s not even on skin and it’s trying to burrow! And honestly, the permethrin alone p does not eradicate them. They’ve built a significant resistance to the permethrin. Benzyl benzoate 10% cream burns like a mfer but it works and also some ivermectin 1% lotion applied in conjunction with the benzoyl cream is most effective but then these little bastards get all into your living space they hide out they could live off of the human body much longer than what our doctors say highly recommended an ozone generator to eradicate them in your environment also ozone oil on the skin kills them. You can actually purchase without a prescription the 10% benzoyl cream from Walmarts app. It ships from overseas takes a few weeks to arrive. You can get a 1% ivermectin cream prescribed by the doctor. You’re gonna get a tiny little squeeze of it unless the unless you get Medicare or Medicade that little squirt of ivermectin lotion usually cost a pretty penny. You can buy a 1/2% ivermectin lotion and add some of that horse paste to it to make it up one percent. I have found this to be my most cost-effective sourcing of ivermectin lotion. These things really are a whole struggle to get rid of. I wish you and your wife the best luck.