 [ Symptoms ] my 11 month old was prescribed nystatin when he got thrush how should i use it and for how long [ Disease ] this is an excellent question and one that comes up often my suggestion is to take a clean q tip and dip it in the nystatin then paint one side of the cheek use another clean q tip and do the same for the other cheek lips tongue etc i would recommend using the nystatin until the thrush is no longer visible to the naked eye    and then use it for two more days