My 7 year old 75 pound lab got into something on vacation yesterday and hives started popping up on his head and jowls...none on his nose. First noticed it at around 1PM so I gave him 75 mg of Benadryl. No breathing issues, no energy issues, hungry and thirsty as always. By 4 PM the hives had gotten worse so we drove 40 miles to the nearest vet who took a 2 minute look at him and said he’s been stung by something...he’s fine, keep up with the Benadryl.
He spent the night scratching himself and finally at 0200 AM wife and I decided we weren’t going to sleep anymore with that going on so we loaded up and drove home. I had some prednisone 10 mg pills here so I gave him one of them at 0600 when we got home and have continued the Benadryl. As of now he’s still lumpy around the head and he’s got scabby raw lumps above both ears. I used some antibiotic spray on those.
He’s still got his appetite and doesn’t appear to be having breathing issues.....should I be doing more than I’m already doing? Surely he’s past any danger of anaphylaxis at this point?
There was a horsefly in the back seat of the truck where he was riding a half hour before I noticed the hives....I first knew it was there because I could hear him trying to bite it out of the air. Have you seen horsefly bites cause hives?
He also was running around the cabin......Our 2 year old female was with us as well....she was either not bitten or was unaffected. Other thoughts? We were in southern Missouri.