First of all using dexamethasone in that manner is extra label and unless your vet told you to do it you are not following the law re ELDU (please don't remind me that most of you don't care)
I will make a deal with you. If you don't bring it up everytime someone mentions it, I won't remind you that I don't care.... Wait until someone actually asks what the official protocol is regarding extralabel use. Fair enough???