Chuck,
Not first aid per se .. just a small bit of extra thot .. remember that acetomeniphen or anything with it, like many of the headache remedies is LETHAL TO DOGS. Aspirin, is not.

Also dogs cannot process chocolate and it too is potentially lethal, so the candy bar thing is a bad idea. Stick to dog food, a small amount in a baggie or a dog bone 'treat'.

Talk to your vet & read some of the hunting dog forums. Lots of good advise here too. Think of getting Jazz 'snake trained'. Runs $25 or so, but can save the dog's life if you are going to have her out in the field hunting with you in warmer climes or areas and not just doing waterfowl retreiving.