Our poor little guy has thrush.... which means he gets to have a purple mouth for a few days due to the medicine (which has a dye in it).
It doesn't bug him but he looks awfully funny when he sleeps and purple drool goes down the side of his mouth.... and I mean BRIGHT purple. Thankfully, we don't have to do it long and it will fade fairly quickly but we have to take lots of precautions not to end up with purple clothes.