Hello
Aziwok i.e.
azithromycin 500 mg is very good antibiotic for cold and
cough ,but if it is due to infection.
But it seems that you may have
allergy.
The reason of allergy may be dust , mold ,
seasonal rhinitis ( mite or hay) ,pollen, sudden increase or decrease of temperature , humidity .
All allergen usually causes
bronchoconstriction and this develops cold and cough .
Usually patient feels congestion in chest with whistling sound in chest ( during breathing).
When such type of patient visit to me I usually prescribe them monteleukast + bambuterol ( combo pack ) tablets twice in day till symptoms last.
I don't prescribe antibiotics if infection do not present.
These are prescription medicine so please consult a physician and get his opinion.
Good luck.