What Causes Pimples On The Face Post Application Of Papaya Paste To The Face?

Dear Sir I am pradeep last one week two or three days i applied papaya peel to my skin after eating fleshy part and then next day will show some brightness on my skin but last three days my skin getting some pimples and black stage on particular place and the people s are also saying what happen to your skin and its look like a black to your face. Did you apply anything to your face asking me sir. And I said only i applied papaya peel before bed for max 30 min and washed with the water. when the days come i just use olay cream for avoiding pimples on my skin sir. that also i can wash afternoon and its looks so beauty for me but last couple of days my skin getting pimples and black on the particular ares i mean left and right chick and fore head sir. so this is the problem for me. So Can you some message to rectify the solution to clear and white skin sir. thats all sir tell me now pls....