Practice spraying with only water as I had a horse that's would hate the smell of sprays rather than the scull spray bottle itself
Probably give them a treat after the spray
What I usually do is make a noise, like a similar sounding noise to the spray and use my hand as if I have the bottle. Over time they get used to it.
Hello Suki !
My horse was afraid of spray bottles too ! My tips is to do a dummy ! I spray on a brush before and brush him after with !
If you spray them gently on there lower legs they should get used to it eventually! But if it is the noise that scares them, then you can fill one with water and just spray it a lot around them then they should also get used to it! :)