That bit
seems to be talking about the instant reaction to the milk. I get that feeling, but it is temporary and does not bother me.
The effects I feel build up if I have a glass of milk for say, 2 or 3 days in a row, then my sinuses fill up non stop. I can blow my nose and clear it completely and 5 minutes later do it again. I know weather and allergies can also play a roll as well. I've been
*testing* my bodies reaction over the past couple of months.
That said, I have not had issues with clearing, even when I have the mucus buildup. Maybe now I can work on hands free clearing
(Again, this is my own non-scientific findings and for discussion)