Maximum Strength Mucinex Fast-Max Cold, Flu & Sore Throat is a Multi-Symptom Relief medicine for your Cold & Flu Symptoms. Maximum Strength Mucinex Fast-Max Cold, Flu & Sore Throat helps reduce fever, relieve cough, sore throat, stuffy nose, chest & nasal congestion, headache and minor aches and pains. Mucinex is the #1 most trusted brand among doctors for Cold, Cough and Chest Congestion symptoms for themselves and their families* and #1 Pharmacist Recommended Brand †.