Dust off froze printed my sceen

My laptop was full of dust so I took some compressed air and started spraying. I kept the container straight, and didn't tilt it, but all of a sudden when I was spraying the screen, it sprayed the cold stuff you get when you turn it upside down and now there is what looks like a splatter on my screen. It didn't affect the image in that area but if you look from an angle, you can see the mark
How do you get rid of this? Can you use some sort of heat like a halogen lamp next to it, or is that a bad idea?

 

Try rubbing it off with a moist towel/napkin/ screen cleaning tissue. If that doesn't work, you might have to live with it...

 

I think leaving the screen near my lamp helped, but I didn't know dust off could cause so much damage. Anyone know a better method of keeping dust off than just wiping or spraying compressed air?

 

I use a handheld vacuum cleaner to clean both of my notebooks. It has never caused any problems for me. And for the screen I use pledge multi-use wipes.

Oh and by the way, just love your title!

 

Also, if you're worried about sucking up tiny parts, you can put a screen at the end of the vacuum, like a very thin piece of cloth.

 

Thanks for the tips!
I'll start doing that and just use dust off on the keyboards!

 

I use a anti-static brush like this :

 

Is Swiffer good for the screen? Like the hand held fluffy one.
Because I sometimes use it.

 

For a light dusting, the Swiffer is fine.

 

I just use Belkin LCD cleaner and their supplied cloth, which is actually the only cloth I've encountered that can clean my eye glasses without using hot water and soap! those micro-fibre one's are crap...