I need to know everything there is to know about night terrors.

I had dd at the paed on Friday and he said that what we are going through is probably night terrors. He gave her something to help her sleep that I can use for a week and he refered me to a child counsellor if after that, dd's sleep does not improve.

So any info, web-sites, tips, hints ... anything, please. I feel so sorry for her, I just want to help her sleep better and feel more rested and not be so scared.