My 8-week-old daughter has a deep cough, can I put child Vicks on her or what else can I do?

Based on the symptoms described, such as coughing, congestion, and yellow-green nasal secretions, it is possible that your 8-week-old daughter has a mild bacterial infection. While it is important to consult with her doctor for a proper diagnosis and treatment plan, in the meantime, you can consider using a children's syrup specifically formulated for infants under one year old to help alleviate her symptoms. These syrups are designed to help with expectoration and may provide some relief until her doctor's appointment. It is important to avoid honey-based syrups and to follow the dosage instructions carefully.