This, like many other topics on here has probably been covered many times.
I'm wondering if many guys on here when working dogs, not just deer dogs, take any sort of dog medical kits with them and what they find useful. I saw the Column in the BASC magazine and thought some of the things maybe a little keen to be taking into the field with and could wait a few hrs till home. I myself work a lab and have never taken anything other than water and some treat bits to perk him up when tired.
All the best.