What Causes Whitish Pink Patch Between The Butt Cheeks?

Hi, may I answer your health queries right now ? Please type your query here...hello doctor, this morning i just realised that i hav some kind of whitish pink patch between the cheeks of my butt. i m hygenic n wash my private parts regularly during bathing. Whenever i washed this particular area i gt a burning sesation. Today when i saw i was horrified n i m worried as what it could be.