Homeopathic remedie for sweet itch?

I've not used homeopathic treatments but I've just started using this (a href="http://www.centralsaddlery.co.uk/product/naf-ditch-ointment/)" rel="nofollow"http://www.centralsaddlery.co.uk/product…/a and have found it excellent. My mare's belly is normally really badly bitten and bloody and bug sprays (especially the Deet) have been leaving her belly raw. I've found this excellent, it's got benzyl benzoate in it as well as fly replellant and an oily base which prevents the flies from landing on the horse. Since I've been applying a little to the areas not covered by her rug she's really improved.