I saw one crawling on his back right next to the medicine right after I put it on but I figured it just hadnāt kicked in yet but it was weird. Then I saw one crawling on the wall yesterday or this morning I forget exactly. Nasty. But havenāt seen any more since. And no more on him. So thatās good. I think it just takes time to start working.Definitely a ton in Wisconsin, im suprised i havent seen any yet.