...something that might be of use before a vet reaches your pet. If you know for sure your dog or cat has been poisoned, feed the animal some raw egg-white. That will absorb part of the poison.
If your animal has been stung by a bee, first thing to do is to grab some ice and put it against the place where it has been stung.
And of course call your vet at once!

Repeating, I`m afraid...