If a 7-month-old baby has symptoms of an upset stomach, you can try giving them a small amount of rhubarb water while ensuring they stay well-hydrated. If they also have symptoms like a sore throat, which may indicate a cold, it’s necessary to administer appropriate cold medicine. It’s recommended to use medications with traditional Chinese medicine ingredients, such as Pudendan Blue Anti-inflammatory Oral Liquid. Always follow medical instructions when giving medication to your baby.