My six week old has been battling thrush for a couple weeks and recently started a new med because it wasn't clearing up. In the last 48 hours I've noticed a decrease in the heaviness of her diapers. She hasn't soaked a diaper over night in two nights she woke up from a four hours sleep seemingly dry and her diapers throughout the day have been lighter than usual. The line still turns blue but I am used to them being much heavier at times.