An local man had a Jack Russell that killed copperheads and was repeatedly bitten by them to the extent that his owner nicknamed him "Zipperhead". He didn't fare well and went legs up permanently when bitten by an EDB. The same man lost two Britts to gators. He saw one taken down while swimming near his dock. The other was presumed taken as he disappeared inexplicably one day. GilWhen a dog starts hunting snakes, they seldom stop. Just like when they get after a porcupine or polecat, even tho it makes them sick or hurts, they keep at it. An accidental bite is kinda different.
^^^A weak spot I see with that training right there is the dog very well may be keying off on the cage instead of the snake. You could simply put the cage there empty and check it yourself. I use a freshly killed beheaded snake, they will rattle for hours sometimes. You also need to see how the dog will react when they think you are not around. I saw program from South Dakota where they were breaking bird dogs. They used a smaller profile of a cage and put in in taller grass. That way the dog learns to not use just their sight and hearing to avoid the snakes, they use all their senses. I often drag the snake thru the brush or grass because pups when first starting to hunt will trail a snake out of curiosity.
Others have commented the Eastern Diamondback is typically more deadly.... if I am understanding correctly. Scary stuff and thanks for the info. I'm not a chemist but a steroid seems to make more sense than an antihistamine.
I can tell you first hand that benedryl does absolutely nothing for a snake bite! Google it and do a little research. I used to believe the old wives tale about benedryl. I've given dogs enough benedryl to choke a horse and it didnt help at all. Dexamethasone is the only solution, I keep it on hand. You can give an antibiotic for secondary infection. No need to rush to vet, take collar off and take dog home. Vet won't do anything other than give a shot of dex and an antibiotic. If it's a lethal bite dog will be dead quickly anyway.