Powerful relief day or night. 16 DayQuil LiquiCaps and 8 NyQuil LiquiCaps. DayQuil: Temporarily relieves common cold/flu symptoms: Nasal congestion, cough due to minor throat and bronchial irritation, sore throat, headache, minor aches and pains, fever. Multi-symptom relief, non-drowsy. NyQuil: Temporarily relieves common cold/flu symptoms: Cough due to minor throat and bronchial irritation, sore throat, headache, minor aches and pains, fever, runny nose and sneezing. Nighttime relief.