Tylenol, Ibuprofen, Advil, and Excedrin are extremely toxic to both cats and dogs and should not be used. However, you can give dogs Aspirin for moderate pain relief and inflammation, at a dose of 10 mg per pound of bodyweight every 12 hours. Aspirin can NOT be used in cats. If there is no relief or the condition worsens you should schedule an appointment to have your pet seen by a veterinarian.