Oral thrush – or oral pseudomembranous candidiasis – is a fungal infection of the mouth common among denture wearers, infants and people with weakened immune systems. The most common human fungal infection, thrush presents as slightly raised removable plaques (resembling cottage cheese) on the tongue or inner cheek. It can also affect the roof of the mouth, gums, tonsils or back of the throat. There are three other forms of oral candidiasis infections: Erythematous candidiasis appears as red patches on the roof of the mouth and tongue. Hyperplastic (chronic) candidiasis resembles the more common type, but cannot be scraped off. Angular cheilitis looks like red sores that develop in the corners of the mouth. Oral Thrush …