Brand name: acetaminophen / diphenhydramine / phenylephrine
Tylenol Allergy Multi-Symptom is used to relieve pain symptoms, sneezing, sinus congestion, runny nose, cough associated with colds, infections of upper respiratory tract, and allergy. It may also be used by your physician to treat certain other conditions.
It refers to analgesic, decongestant and antihistamine combination. The analgesic makes the brain to reduce pain. The antihistamine blocks histamine effects, which cause allergy symptoms like sneezing, and watery eyes. The decongestant constricts blood vessels and reduces the nasal passages swelling, thus decreasing stuffiness.