Yes, there are several natural remedies that can help soothe a dog's upset stomach. One option is to offer small amounts of plain, unsweetened yogurt, which contains beneficial bacteria that can aid digestion. Another option is to give your dog a small amount of pureed pumpkin, which can help regulate their bowel movements. Additionally, chamomile tea can have a calming effect on the stomach and may help alleviate discomfort. However, it's important to consult with a veterinarian before trying any new remedies to ensure they are safe and appropriate for your dog's specific condition.