Pain Reliever, Antihistamine, Nasal Congestion. Fast Relief of: Nasal congestion; Head congestion; Pain and pressure; Headache. Pleasant taste! Contains 10% Alcohol. Comtrex Nighttime Liquid formulated to treat the symptoms of an Acute Head Cold. When you have nasal and head congestion, sinus pressure, and a headache, you want relief. Comtrex targets your symptoms so you feel better and can get a good night's rest. Comtrex Acute Head Cold Nighttime Liquid is a maximum strength cold formula with a pleasant strawberry taste. For customized relief of your cold symptoms, take Comtrex. Contains Placebo.