if the "cold" irritates the "throat" or is causing the "cough",
sure, don't drink.
if not, sure, go ahead and drink...
some people, when they drink cold water down their throat, they
will start coughing (asthmatics) or worse....
so grandmothers, to play safe, tell you... cannot drink cold
drinks!
after all if you don't drink, no problem right?
This is how "kiasu" starts...