Hasn't seemed to hurt the help the coffee gives me...I don't use milk, I use artificial creamer and that might be the difference. Milk would probably make it worse. You never really want to drink milk when you have a lot of coughing problems, no matter what the source. Talk about adding fuel to the fire.
But I am lactose intolerant, so I tend to avoid milk.
It seems that whatever this chemical is, is what a lot of folks are allergic to.
It seems to be toxic to about 10% of the population (migranes, asthma, etc.)
I might support banning that carrier chemical.