Hi, I too have discoloration on my face. There are lighter patches in spots and darker patches in spots. I have had the same on my forearms but one spot disappeared after a year. I'm not sure how or why it did but I was glad, it just looked like a dark circle on my arm.
I am not if my heritage has anything to do with it (Native American), but the Plaquenil does make me extremely photosensitive. Of course it lightens some in the Winter months. Somehow I have managed to just live with it.
Got tired of trying to hide it. Just take it in stride and go on. I also had some hair loss when starting Plaquenil but most of it has grown back in. Sorry you are having these issue.
There Is Always Hope