If you are a pet parent at some point you will find yourself caring for a sick animal. I have a Shih-Tzu who constantly seems to have something wrong with him. Thankfully my vet gave me a list recently of human medications that are safe for dogs.
I have learned that many of the illnesses that my Max deals with can be taken care of with over the counter medications at home. We use Benadryl quite often when he has allergy attacks (usually in the spring and fall). We have also had to use Pepto Bismo and Kaopectate quite often, especially when he was a puppy.
**Disclaimer-I am not a vet! If your 4 legged friend is sick, really sick, take them to the vet!