Most coughs and colds improve with time, rest and appropriate self-care, but symptoms can sometimes signal a more serious problem. Consider the person’s age, existing conditions, pregnancy status and all medicines already being taken before choosing an over-the-counter product.
Get professional advice
Speak with a doctor or pharmacist if symptoms are severe, persistent, worsening, or unusual for you. Seek urgent help for severe breathing difficulty, chest pain, confusion, blue lips, or a serious allergic reaction.
Use labels carefully
Different products may contain the same active ingredient. Read the active ingredients and warnings, and do not combine products unless a healthcare professional confirms that it is appropriate.
Demo source: MedlinePlus: Using over-the-counter medicines safely.