FIGHTING COUGHS & COLDS FOR MORE THAN 50 YEARS… At Covonia, our range of no-nonsense products can treat most types of cough. …
常见问题解答
问:
What is a chesty cough?
答:
A cough is a natural reflex action to clear your airways of irritants. A chesty or ‘productive cough’ is specifically caused by congestion in your lungs. Your...
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