The owner of a dog that eats a tampon should induce vomiting, according to Call a veterinarian, who may recommend trying to induce vomiting at home with hydrogen peroxide or coming in to the clinic for the procedure.

A dog cannot digest a tampon, Petplace states. Larger dogs may pass the tampon on their own but smaller dogs are likely unable to do so. If the dog is unable to pass it and doesn't vomit it up, it may require surgery. However, the veterinarian is likely to take X-rays first and may try to find and remove the obstruction with a fiber optic endoscope equipped with a camera.

The dog may cough, gag, lose its appetite or seem to have trouble breathing if the tampon is obstructing its throat, according to PetMD. This is quite dangerous and requires a vet visit, at which the vet may remove the tampon with an endoscope, just as she would if the tampon had made it as far as the dog's stomach. However, if the dog's esophagus is very damaged, the vet may need to perform surgery. If the veterinarian does decide on surgery, she is likely to prescribe 10 to 14 days of antibiotics. Follow-up treatment may include pain medication and a return visit.