dun - bingo! It's just something for that client to do - but it's really not as innocuous as most would like to think.
Too many folks think that just because their cow, kid, dog, has a sniffle or sneeze, that they need a shot or a pill. Too many doctors and vets buckle to the pressure to give or prescribe something just to satisfy that client - even when it's not necessary or indicated. Been there, tried not to do it with my clients - and attempted to explain to them WHY...
Jiminy, if I went to the medicine cabinet - or the physician - every time I had a stuffy nose or a nosebleed...
bse - I was unfamiliar with Hexasol - it's essentially LA-300 with Banamine in it.
Tincture of time and close observation is what I'd use. If the cow is otherwise normal, eating, cleaning her nose, etc., and the blood is no longer there, *I'm* not doing anything to her. The stress of trying to get that one cow up to treat is harder on her - and me! - than any benefit either of us would gain from the exercise.