A: Cold symptoms are caused by the six negative influences – wind, chill, heat, moisture, dryness and fever, and can be categorized into anemofrigid and anemopyretic. Other than regular cold medicines, Po Chai Pills® is also an ideal choice in dispelling pathogenic wind and dampness, improve circulation and relief pain, improves spleen health and promotes digestion, improve appetite and antiemetic, and relieving cold symptoms such as headache, shivering, running nose, sneezing, fatigue and joint pain.