Ok so my pup got sick again a few days again. He was healed last friday, then a few days a go on Wednesday he got a fever again. The fever won't go down. We tried IV, gave him tolfedine for the fever med. It helps maybe for a few hours and fever is back again (ranging from 39.5C - 40.5C). I thought it was from the botulism creeping up again, so we gave neostigmine shots 2x. He doesn't seem "paralyzed" like he was before so maybe it's from another cause. The vets don't know what's causing it, only some sort of internal infection most likely. Anyone have experience with any of this? I might leave him at the vet for a few days so they can deal with the fever better. It's just unnerving sleeping at night not knowing if the fever will go up to 41C or not and the nearest 24 hour vet is 45 minutes away with no traffic.