Hives in horses

[Landy77]

Any ideas of natural antihistamine for horses.
Slightly long story but very briefly my horse has a recurrent allergy isn't affect very often last time it happened was 18 mths ago, previous allergy testing has come back none conclusive and no real pattern, happened in summer, winter stabled out at grass etc, but it's defiantly an allergy when the lumps/hives arrive they can last for a week to a couple of months and are from serious swollen face, throat etc to a few lumps on her neck. it's fustrating and the vets aren't a lot of help rather than give steroids but I would rather not.

[SilverSky]

Piriton.

[Landy77]

I would rather not as compete

[SilverSky]

Contact Crossgates.

Friend of mine used them for her gelding's bad sweet itch. Worked a treat.

[BrightenMyNorthernSky]

[sorry if am offering advice that's too obvious and you've tried] - mine had this in the summer / autumn. We didn't get to the bottom of what was causing it, but it was clearly something he was coming into contact with (rather than eating) as I ended up covering him completely in a fly sheet and mask, and they disappeared in about 10 days.