At 8 months of pregnancy, medicines should be used with caution, especially cough syrups containing bronchodilators like terbutaline, so avoid Bro-Zedex syrup unless your doctor specifically prescribes it. A wet cough for a few days may be due to a viral infection, and measures like warm fluids, steam inhalation, and rest can help relieve symptoms. As your cough persists despite current treatment, it is best to follow up with your doctor to reassess the cause and adjust medicines safely. Seek prompt care if you develop fever, breathing difficulty, or reduced foetal movements.

As your wet cough and chest blockage have not improved with your current treatment, please consult your doctor for further assessment and a possible chest X-ray to rule out any underlying infection. A stronger mucolytic, such as N-acetylcysteine or carbocisteine, may be prescribed to help clear the mucus.

A cough that keeps returning after antibiotics may be due to allergy, asthma, acid reflux, or a lingering airway irritation rather than infection. You should consult a doctor for evaluation, and you may need tests such as a chest X-ray or allergy testing instead of repeated antibiotics.