A stuffy nose + cough + chest congestion = one unhappy camper. When your child gets sick with more than one symptom, relieve what’s bothering your little one with Children's Mucinex Multi-Symptom Cold Liquid in Very Berry Flavor. Mucinex Children's is the #1 Pediatrician Recommended Brand*. Do not take more than 6 doses in any 24-hour period; measure only with dosing cup provided; do not use dosing cup with other products; dose as follows or as directed by a doctor; ml = milliliter. Children 6 Years to Under 12 Years: 10 ml every 4 hours. Children 4 Years to Under 6 Years: 5 ml every 4 hours.