I heard that you can spam fast colors on the screen and that can help, also I myself have tried this one: you get a SLIGHTLY damp cloth and you turn the screen off SLIGHTLY press against the screen and turn it back on and it should go away. Well, worked for me at least.
"Truth is violated by falsehood but outraged by silence."
"Mastering others is strength, mastering yourself is true power." ~Sun Tzu
"Ad Astra Per Aspera"
"Our greatest glory is not in never falling, but in rising every time we fall." ~Confucious
"The true measure of a man is how he treats someone who can do him absolutely no good.” ~ Samuel Jackson
“Omnis vir est fortunae faber”