dear gpm, thanks for your encouragement.
ref dressage - not in this lifetime.

sorry to have misunderstood your earlier post and thanks to you and denise for explaining. pity you two don't live nearer.

i am wary of using the grief rubric, because, hope you don't mind my mentioning gpm, you sound very reflective for the good old days, and i am cautious lest that is being projected onto your horse.
if her hair is dry, there is a clear rubric, but you have not specifically said it is dry.
as well as kali-carb i think sulf is in the running as denise mentioned she used for her horse.
maybe graph, but unlikely if she is not cold, since graph has poor circulation to the skin causing the hair dryness.
possible phos as well?

sorry i can't be of more help.
and gpm, look on the bright side, you now have an ophidian friend. ...branching out...never too old etc...