Milk of Magnesia will destroy oral thrush in 2 days and it is painless. Swish a small amount around in your mouth for a few minutes 4 times a day. You can dilute with water the first couple swishes, but then swish it straight. I had a terrible case of thrush from IV Antibiotics . With the first swish of MoM, the scales started falling off and were totally gone by the next night. Try to find a brand of MoM which has only magnesium hydroxide and purified water but no fillers.