I need some creative help here. I have an OLD mare that seems to have an extreme reaction to tick bites. Even the tiny little seed ticks will leave a whelp 3" across and a few times each summer, when I miss picking one, she will get an abscess. We seem to be ground-zero for the tick population around here because I can easily pick 15-20 off of her every few days. I've tried the 'spot on' stuff and it seems to work for a little while but it's SO expensive. I've heard that seven dust works just as well but has to be re-applied rather often. Here's the problem - most of the time, when I find ticks they are up between her back legs, under her tail or in her 'arm pits'. She is SO ITCHY in those places because of the tick bites that she literally can not stand still if I touch her. She gets to stomping around and looking for something to scratch on. She spends a lot of time rocking back and forth over small trees to get to those itchy places - and I'm afraid she's going to get a puncture up in her gut or something. So - how would you dust UP under a horses' belly - UP under her tail and UP into her 'arm pits' ?