There are facilities, she should have used them. If you chose to travel with a baby, this is one of the things that has to be taken into account. You should have informed the Lounge Staff and let them deal with the matter. This is not acceptable.

To the good soul who asked how have we fallen so fast? I think that it is because people like us allowed others to get away with this rather than standing up and saying NO! I'm a fairly tolerant person but this is a hygiene issue. I simply cannot understand what sort of parent would do this.