If your pup is choking, it is very important to immediately see the vet. If her gums are nice and pink, and her respiratory rate is normal and she just happens to have some coughing, you can try to give a small amount of honey to sooth her irritated throat. Make sure it's not sugar-free honey with xylitol which is toxic to dogs! If you think she may have some particles stuck in the throat, you can try to feed her a few pieces of bread and then offering water in hopes of pushing any residual pieces left in the larynx through. You can try to repeat again a little later if the coughing persists, but see your vet if she's struggling to breathe or develops other worrisome signs.