On the web, I was browsing and some red dots faintly appeared when I looked at the screen from a different angle. I went in a text editor to see if it was the web page, but the dots were still there. Next day (now) they are still here - I wanted to know if the screen could've been damaged permanently or temporarily because I think it's burned, seeing as the computer was on for a few hours, count dinner in between!
Are the dots always in the same place or do they move around? Is it a laptop or a desktop with a separate screen? It's most likely not the whole computer that's damaged. In order of most likely problem If it's a separate monitor, I would say that the problem could be.
Monitor Cable - Most monitors have replaceable cables. Try just removing and plugging the cable back in, or try a new cable if this doesn't work.
Monitor - Try a different monitor if reconnecting the monitor cable or getting a new cable doesn't work.
Video card - Try using a different video card, possibly switching to your on board video card if you are currently using a PCIe video card. Or try a different output on the same video card. Video cards can be easily replaced, but they can get expensive.