Allergic reactions to bees, hornets, yellow jackets, wasps, and spiders are common in dogs and cats. Most of the bites/stings occur on the face, ears and paws. Typical signs of an allergic reaction are swelling and redness around the eyes, eyelids, muzzle, nose, and ears. If the bite/sting occurs on the paw it will be swollen. Trouble breathing may occur in severe allergic reactions. If an animal has these signs, look for a stinger and remove it with tweezers if it is present. Most animals will need to see a veterinarian to receive the initial allergy medications by injection but call your veterinarian for advice regarding home vs. clinic treatment. Your veterinarian may advise to have antihistamines available at home for any future incidents.