What should you know about OTC cough suppressants?

Cough suppressants reduce the urge to cough or make coughing less forceful. They may be considered for a troublesome dry cough, but coughing can also clear mucus from the airways, so suppressing it may be unhelpful when phlegm is heavy. Cough has many possible causes, including a common cold, acute bronchitis, allergic rhinitis, asthma, acid reflux, and longer-term airway problems. The right treatment depends on the pattern and cause.

Read the active ingredient and follow the label. Check with a pharmacist before use in a child, during pregnancy or breastfeeding, or alongside medicines that cause sleepiness. Avoid doubling up on combination cold remedies. Fluids, warm drinks, and avoiding smoke may soothe irritation. Do not use a suppressant to postpone an assessment when the cough is worsening, persistent, or producing unusual sputum. A pharmacist can help distinguish a suitable short-term product from a situation needing review.

Get urgent help for severe breathing difficulty, blue or grey lips, chest pain, coughing blood, confusion, or sudden deterioration. Arrange medical advice for wheezing, repeated night cough, fever with worsening symptoms, unexplained weight loss, or a cough that does not settle. Children with breathing difficulty, poor feeding, or unusual sleepiness need prompt assessment.

Is my cough dry or mucus-producing? Which cause should we consider? Could reflux, asthma, or an allergy be contributing? How long is self-treatment reasonable for me?