If it's anything like my something something UltraGear LG monitor, disconnecting power for two minutes or so might help. I had severe ghosting in the shape of

If it's anything like my something something UltraGear LG monitor, disconnecting power for two minutes or so might help. I had severe ghosting in the shape of YouTube's home page and disconnecting it solved the issue. Apparently the type of panel they use tends to do stuff like that.