@S1969 Has given you great advice --two other suggestions --write a hard copy letter to whatever vet u use regularly and let him/her know dates, expectations, and that you will foot the bill. Our instructions to house/horse sitters are, “Call the vet first.” The vet will come to the house (for dogs, cats, or horses -if I pay the farm call). The vet will then call me directly with the situation. I’d rather talk to him than the farm sitter --by the time she calls me, I evaluate, she calls vet, we are losing time. So, call the vet first. In 40 years the only time this was an issue was when I forgot to tell a new farm sitter that one horse cribbed. She mistook the grunting and huffing for colic. Vet came, explained, left. $45 farm call --and I was glad to pay it. What if she’d mistaken a colic for cribbing? (shudder).
Second --and you may have done this --pay your sitter to come for an hour or however long, and do a walk through with you —if you have written instructions --give her a copy (my young people like emailed copies so they can look on their phones while working, but I leave a printed hard copy in the house and in the barn) --be silent as the sitter figures out how many cups to give old Fred, and what supplements. If you see an omission, have sitter write it on to the directions --oops, you forgot the cup of oats --underline that! Make sure all important phone numbers are on the sitter’s phone. And I too like a quick photo of my critters sent now and then by the sitter.
Third -(and some people on this BB said this was objectionable) -have a spy. About two or three days into a trip, I have a horse-owning neighbor drop by --I tell the sitter that she is coming to pick up a saddle pad, and ask the sitter if she wants the person to call/text before she comes so having someone suddenly at the barn isn’t scary). The friend-who-is-a-spy comes by, and picks up the saddle pad —meanwhile checking that water tanks are full, hay is out, gates shut, and all three horses have 12 legs. She may chat up the sitter on the pretext that she is looking for someone to watch her place --she tells the sitter how great I think she is --(which I do or I wouldn’t have her there). I do this because a second friend had a teenage relative watch her place --only to come home after a week to bone-dry water tanks --girl forgot to fill them! It was rainy enough that horses were ok --but I feel a spy is a good idea!
Last --the back up plan —make sure your sitter has someone who can sub for her and you are ok with that. I have a deep bench of farm sitters --so the sitter always has a number she can call.
Then enjoy yourself. My neighbor (different one than spy) --has NEVER taken a vacation with her husband—either he or she always stays home to “watch the horses.” My feeling is that there is NOTHING that can happen that will be different if I am there —horses get hurt (call the vet). Horses get sick (call the vet). The outcome will be the same if sitter calls vet or I call vet —oh, and I have a backup vet, too. I travel (or did before COVID) out of the US and am gone for weeks at a time. Might help to take short trips first, to ease your mind that all is well . . .